I am fine with content that causes no group drama. AI battlegrounds were just great, as the AI NPCs had no chance to win. And if no real player loses, there is not going to be any group drama. Add to that, that battlegrounds do have different outcomes whenever you play them.
The NPC battlegrounds were a huge success. The queue time for those were seconds, while you have to wait for 20 minutes for a normal battleground. Also, noone felt any pressure by real competition. And that is something many people like.
I would always prefer to play against and with NPCs, than against players or with players.
And, hey, sorry, but just take a look onto this thread. If you group up with other people, you will meet as toxic people as in this thread. Happened to me a lot when i played in matchmade dungeons and LFR at start. Nowadays i avoid these group compositions, as i try to avoid toxcicity in the game.
You meet the same people ingame, that hate you for not liking dungeons here on the forums. That want you to play the game as they like. That cannot stand if you do not like what they like.
Exactly as like in this thread.