I think it's fine to criticize some of the story beats of Dawntrail, but when it gets to some of the more hateful stuff I wish people would just chill out.
This "mediocre expansion" - according to some - is still better than what you get with most MMOs.
Would I change some things about Dawntrail? Yeah, sure. But did I also still have fun exploring a new continent and meeting new characters? Yep.