That's one of the main reasons the orc questline got the reception it did. Whatever its issue, it had a macro focus. The fact that the orcish cast is composed almost entirely of non-entities means that the focus is who they are relative to their broader group which makes the world a bigger deal. No one cares about Gorfax and Jorin's only character trait is his last name, but the Dragonmaw and the Bleeding Hollow are great and they're what's actually in the center. Ditto it's the one of the few quests in the entire game where orcish shamanism is more than an incidental plot backdrop.
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Le Conceptuel
Stories work best when they work with what's actually there rather than what we wish was there. The orc story is strong for the same reason the Cataclysm Forsaken stuff is strong - it works off of what the race actually has. Much like how the Cataclysm Forsaken didn't sweep the fact that they were dicked out of participating in their main vendetta in Wrath and have no main purpose now but made it the entire premise of the plot, so too does the orc heritage questline hinge entirely on the fact that the MU orcs have been culturally vacant blobs taking loss after loss to its major characters the inciting incident. The orcs decide to get back in touch with their heritage proactively in an on-screen event based on what actually took place to them, there's no unearned off-screen handwave to the premise. Even my biggest issues with it, how toothless some of the clan renditions (Blackrock, Warsong, Shattered Hand) are and how nice everyone is to each other follow the same vibe of a race out of touch with its cultural origins trying to put them back together from scratch and desperately wanting to have at least one straight celebration. The grounding of the Kosh'harg as being a place of truce and conciliation also serves the same purpose.
The human storyline doesn't hinge off of any of these loose threads or what actually happened but retroactively claims something entirely different happened which fundamentally changed the status. I can't actually tell @
Varodoc about Turalyon's leadership or lack thereof because there's precisely as much backing for him being seen as a gracious regent to him being an Oliver Cromwell figure. Or to him dedicating the kingdom to worshiping the outer gods, fuck knows, his reign has 0 lore attached. Now, Stormwind is handicapped by how unlike orcs it doesn't have much background to work with. You also can't really make the base human heritage questline be about uniting the kingdoms given that most of the kingdoms are either inexplicably neutral (lol Dalaran), separate playable races (Gilneas, Kul Tiras) or entirely replaced population wise, destroyed or otherwise closer to an enemy (Alterac, Stromgarde). A questline focused on having all of the remains of the human and allied kingdom fix up the kingdom and show well it works as the nexus of the Alliance might be a beat you could do I suppose.