This, I leveled up 10 alts in like 1 and half week. Most of them only took a couple of ours.
The thing is that most of the people that says the game is not fun and that they don't like numbers and progression(with accountability) are probably looking for a different type of fun...
Wow is fine, the problem is that those people just want to group, chat, press some buttons and pretend to have a win...
Listen I'm all for players just using wow as social network as long as it makes them happy and that's exactly what Blizzard believes, so much so that they brought back Classic/Vanilla and Season of Discovery... They even state in their updates that most of the "new" SoD content is tunned for 20 players but you can bring over to 40 players in to chat, horse around etc... and still be able to easily do the content.
So yeah those people that are tired of the new "demanding" retail wow already have a place they can call their own, so I don't understand why they dont play that instead of complain all expansion long about how retail is not fun anymore.