Marvelization…Disneyfication…
I don’t know.
I’d hesitate to overanalyze Blizzard’s story issues, because they seem quite banal once you look at them.
A simple issue is that they change their stories during production (because WoW is a content-driven and not a story-driven production), but they don’t seem to have time or resources to implement their new stories properly afterward, so they end up with some half-baked results that are unsatisfying.
Warlords of Draenor is one big mish-mash of incomplete and incohesive stories. So is Shadowlands. And to a lesser degree so is Battle for Azeroth and Dragonflight. Legion is probably the most complete and cohesive recent expansion, but even that doesn’t hold up to scrutiny.
Blizzard used to adhere to the mantra “When it’s ready”, but with WoW expansions it feels more like the mantra is “Just ship it”.
Another simple issue is that they do quantity over quality, also in terms of story.
That’s the edge that large companies like Blizzard Entertainment has in the industry – their ability to create juggernaut games with lots of stuff. That’s the niche that triple A game developers have found for themselves in this new digital age with fierce competition from indie developers who are capable of competing on quality. It’s quantity. Blizzard can make big games like few other companies can.
The problem is just that while there can be a lot of value in simply stuffing a game with more gameplay content, the same does not exactly hold true for story. Whether you get 800 or 1000 or 1200 quests in a WoW expansion is not as important as whether those quests tell a quality story. But the goal isn’t to tell a quality story – it is simply to tell a lot of story.
How much story does Dragonflight juggle with? Dragonscale Expedition, Djaradin, Tyr, Aspects, Bronze Flight, Blue Flight, Black Flight, Dragonkin Rebellion, Amirdrassil, Gnolls, Furlbogs, Tuskarr, Centaur, Incarnates, Neltharion’s past, The Emerald Dream, Dracthyr, Titans, The Void, Azeroth, Old Gods, Niffen, War of the Scaleborn, Nesingwary, The Kirin Tor, The Infinite Dragonflight, Murozond, Night Elves, Humans, Orcs, Forsaken, and so on.
The emphasis is on Quantity.
Those two examples alone – the fact that Blizzard just writes a ton of stories as fast as possible and crams them into the game, and then re-writes half of them after the fact, that obviously makes for a lackluster result.
They don’t have the basics in order for writing a good story, regardless of what that story is.