Parallels are something that I love being able to draw out.
In the WC3 cinematic that showcases Thrall and Grom’s bout with Mannoroth (and Grom’s epic death), the first hint we get of Mannoroth’s presence is him chuckling off-screen. The same thing happens with Mannoroth in the WoD cinematic.
In both cinematics, Mannoroth is expressing his dominance over the orcs; in WC3, he states it plainly, while in WoD, he calls the gathered orcs mongrels and goads Hellscream: “did you bring [the orcs] here just to watch you die?”
In both cinematics, the first attack on Mannoroth fails; in WC3, Thrall’s assault with the Doomhammer gets knocked aside effortlessly, while in WoD, the ballista’d chain meant to pin him down so that the Iron Star could end him gets countered.
In both cinematics, Mannoroth goes down in one hit from Gorehowl. It’s much more believable in WoD, because getting an axe embedded in your skull is more certain of a killing blow than getting it in the chest, especially with as much mass as Mannoroth has. To an extent, this is something that really remarks both on the strength of a weapon like Gorehowl, which has the most mundane of origins, and on the strength of the guys who have wielded Gorehowl.
It’s where the parallels give way to even greater shifts that I get really interested.
In WC3, Grom attacks head-on after he gets taunted by Mannoroth. This sells the idea that Mannoroth knows exactly how to manipulate Grom, and the only thing that goes south for the pit lord is that Grom gets a killing blow in past his defenses. In WoD, if you’re going in with the WC3 cinematic in mind, you expect Grom to do the same thing… but instead he smiles, and you see the catapult fire coming in behind him. This younger, uncorrupted Grom is already acting with greater foresight than his older version; all of this builds to the idea that this Grom is patently more dangerous.
Grom makes sure the Iron Star gets deployed rather than just going toe-to-toe with Mannoroth. Not only does this continue building the “new/improved Grom” concept, but it also demonstrates how the Iron Horde is going to marry the brawn and determination of an uncorrupted Horde with the Blackfuse technology that the Iron Star represents. It’s foreshadowing how much more technological this Iron Horde will be in comparison to the Blackhand/Doomhammer hordes of the past.
Clearly, having Grom get silhouetted against the explosion coming from Mannoroth’s corpse is a callback to the WC3 cinematic, but it’s so important that Garrosh dives in to keep Grom from getting killed. This is a huge expression of the heroic qualities that Garrosh has; your standard villain would probably let Grom die after doing his job, but Garrosh saves him. And while people drawing Back to the Future parallels might argue that Garrosh is only saving Grom in order to ensure his own future conception (which is a self-serving villainous thing to do) that’s dependent on duplicating that franchise’s plot devices.
Garrosh saves Grom because Grom is his father. Garrosh believes in the brotherhood of the orcish people when (and only when) the orcish people are being true to his vision, and that vision is modeled after Garrosh’ perceptions of Grom as his father. Saving Grom from death is emblematic of Garrosh rescuing the orcish people from what he feels was a degradation of their culture.
The other side of it, which some folks have pointed out, is that Garrosh saving Grom represents Garrosh doing something that Thrall failed to do. Thrall’s project in Lord of the Clans was to save the orcs from their bondage, both in terms of the internment camps and the bonds of Mannoroth’s blood curse. Thrall was able to do that, but he failed repeatedly to keep any of the icons of the old Horde alive or on his team; Orgrim died, Grom died, Rend and Maim refused to join him, and the Dragonmaw and Blackrock clans both essentially stayed rogue. More specifically, it took Grom killing Mannoroth to finally free the orcs, since Thrall was demonstrated in the WC3 cinematic to be completely ineffectual against the pit lord.
Garrosh is, to a great extent, the perfect complement to Thrall. Both of them want to embrace the old ways of the orcish people, but both are focusing on different things: Thrall wants a return to a life guided by the spirits of the ancestors and in harmony with the elemental spirits, while Garrosh wants a return to the life of orcs expressing their worth through acts of strength and valor. Both of these are facets of the pre-Legion way of life for the orcs.
Garrosh is not wrong for wanting what he wants. Where Garrosh goes wrong, and the reason he’s ultimately an antagonist instead of a protagonist, is that he wants the unified orcs to express their strength and valor against other equally heroic races. Moreover, by saving Grom and saving the orcs from enslavement, he’s ensuring that the Iron Horde will be empowered to do just that. Which ties in perfectly with Grom’s final line:
“We will never be slaves, but we will be conquerors.”
Thrall exists because of the enslavement of the orcs. Thrall’s name is a word for “slave.” It can’t get more overt than that; Thrall is a representation of what the orcs inevitably became as a result of drinking the demon blood. Grom’s statement (and you can almost hear Garrosh being the guy who planted the concept in his head, Inception-style) defies that future, defies the very idea that an orc like Thrall could ever come to pass, and instead sets the Iron Horde on the path of strength and strength alone governing their destiny.
There’s an elegance to this that I think a lot of players miss out on, and which Blizzard does little to emphasize by having so much of nuance of the game’s story outsourced to novels and short stories. There’s a nobility in the Iron Horde’s desire for self-determination that I think players are never going to see, because the orcs are going to be self-determining through butchering innocents, and as heroes, our job is to stop them. It’s a really different type of opposition than we’ve ever faced before (though there are hints of something similar with Lei Shen’s death line “I was only trying to do the work of the gods”) but I think it’s a bit sad that players are going to gravitate towards killing these guys because of their fat loot without ever questioning if it’s right to kill them.