I remember in Legion when I had this thought
The second fact is they're doing it on WOW Classic TBC Gold purpose, they intentionally emphasise QOL modifications and noticeable improvements so as to artificially extend gametime and enhance performance metrics without actually having to produce new content but instead just making present content take longer.
It's not just classes, it's everything. Could you imagine how boring it must be to work on crafting? Gotta create that new healthy portion with all the new peace blossom along with the new vial. What's it gonna seem like? Oh it's a red bottle with some gold shit on it or something.
I remember in Legion when I had this thought. Two months to Legion I was playing along after the story in Legion and unexpectedly to continue a questline I had to do a mythic dungeon of a specific difficulty. It wasn't designed for a casual encounter.
It sucks because I recall when they implemented raid finder for buy WOW TBC Gold a means of generating lower difficulty content so people could have the story without needing to be more of a'hardcore' player. Suddenly fundamental outdoor quests required competitive content.