After BfA or honestly after Legion I saw quite a large amount of people wanting the Factions to be over. Me personally I've never been really for it. I feel more strongly to the Alliance and Horde getting their shit together than quitting it for a third faction entirely.
MoP handled the faction war the best honestly and it did a really good job of concluding it all at the same time. BfA's felt rushed I do like how they remove the Warchief title finally and better leaders are at long last established but that's really it for its ending.