Literally. Why is it SO hard for Blizzard (and other modern game devs for that matter) to just DO THE COOL THINGS instead of wasting braincells on plots no one cares about.
They could have done literally anything with the Old God Blood up to and including making Nightmare Visions of C’thun, Yogg’saron, N’zoth and Y’sarj and it would have earned 1000000000x investment from players no matter how much of an ***pull it would be and no one would care that it was
Honestly i still think they have Game of Thrones brain.
A comparison can be made between both Suramar and Ahn’kahet featuring storylines involving a rebellion to overthrow a corrupt leader, but the storyline of Suramar managed to make players feel personally invested with gameplay and story elements that kept them engaged, whereas Ahn’kahet did not manage this feat.
The Klaxxi were handled better IMO. They considered us expendable, were openly evil (even before the revelation at the end) and yet somehow managed to still be charming. As in, when it came time to kill the paragons, I felt genuine regret.
All of that was managed without the game pushing a “they’re just people with different goals than you” narrative.
I’m more interested in the environment assets of azj’kahet…. If you look at the flora and fauna around… very different from the actual zone 
also it’s alrite, I still like suramar more.