I've never played Morrowind but judging from what the Devs said originally about Cliff Racers, how there were too many of them in Morrowind I'm gonna vote no. Even though they won't annoy me it will get old killing something that flies down at you.
The problem is that they don't fly down. They get stuck, yet can still follow you horizontally if not in trees.
Ah, didn't bother me. So a crap loot monster was hard to loot when it was in a tree. As for being everywhere, I need something to shoot, stab, fireball in order to improve my skills so no problem there either.
They got stuck out of my reach, so I couldn't stab them.