I mean, I knew it couldn't have gone to such extremes, but the problem is that BFA ended with the situation of the world being too similar to how it was prior. Some key characters were removed, but otherwise the roster is as they've always been, or even milder. No repercussions of any kind one way or the other, it's like we didn't even have a war. I could begrudgingly accept that disappointing return to status quo once with the defeat of Garrosh, as much as I hated the idea of Vol'jin as Warchief. But this second time is too much. There needed to be repercussions, for things in the world to actually change. The announcement trailer painting the continents red and blue suggested as much (not that I want a total continental split between Horde and Alliance), but all that amounted to was Darnassus and Undercity being locked behind Chromie-time, which isn't nearly enough, especially as the war started with them.
Faction war only works if there are notable in-game repercussions. Consider how Stormwind was totally sacked in the First War, then the Second War saw the destruction of Alterac and Horde was defeated and scattered. With the past being like that Blizz can't just initiate a total war in WoW then cheap out on the repercussions. While they can't obliterate the factions they can destroy cities, make whole zones change ownership, build something new. Cataclysm was an attempt at such (though I want them to go even further). With BFA they went a little way, then threw in N'Zoth as a distraction. The most cringing example of how out of touch they are is the Loyalist plot-line. We were essentially the same as the Rebels, doing same things such as killing Sunreavers to free Baine. But as double agents, hue hue!
I didn't think it was unreasonable to expect Blizz to do something fresh with a faction war. Currently my only hope is that they'll find the spine to do something with Lordaeron now that it's in a highly contested state. Imagine if at the end of such potential campaign Alliance actually has a major city there and works to renew the land? I'd want that far more than for the Forsaken to get theirs back, which says something since I used to be a hardliner for Forsakens' right to Lordaeron.