Under no circumstances should a damaged monster refocus and start chasing someone else who just ran by. This is annoying and only serves to promote killstealing as the mob you are fighting decides to run 3 screens away to target someone else. Provoke should be based entirely on skills used (manual), the way it does in every other game.
For that matter, mobs running away when they get low didn’t work in Granado Espada and it certainly doesn’t work here. Especially when almost every one of them does it.