I definitely do not miss early Legion. They fixed things and some of them fast, so people don’t remember it much.
But some halls had to be adjusted because their campaigns went far longer than others because of the table missions.
Artifact knowledge was a terrible grind and needed.
Legendaries didn’t get fixed until far later when they finally put in the vendor. They did try to fix them by having them drop from more sources. But there were still people without their legendaries they needed.
I did like the leveling experience better. But Suramar and Revendreth are both the same hell hole with a different skin.
I still hate Argus.