Same impression.
I main horde, and quite enjoyed the whole Zandalar. Every region had it's own story, but everything was linked. So we have that impression to work for something important.
I started an alliance character and really can't get into it. I was incredibly disapointed by Tiragarde. The main questline is completely "meh" and the final :
https://www.youtube.com/watch?v=pQp8AGpP2WA
is such a joke I couldn't believe it. Who makes a story cinematic like that? A 12years old?
A resume would be :
Taelia : "Hey, nobody knows me, but that very important person is a liar and did everything. Look I have a bag as a proof!"
Proodmore :"Ho my god a bag, how could you do that?"
Ashvane : "It's all true I'm so evil!"
*Big explosion of Azerith bag, nobody dies*
5 minutes later, Proodmore asks Taelia who she is...
I'm starting Dustvar. The whole witcher 3 look is amusing, but when you have played that game you really can't compare the questline quality. It's incredible talent versus nothing. Pretty hard to get into it, it might gets better, I hope.
In both case I have the impression that 90% of the quests are meaningless.