When characters not under direct control go to a door to draw my attention to enemies behind it, & get hit by a trap in front of it (NWN 2). Even the tiefling thief. This is ok, but a party that fights effectively, & only splits up if you want them to, is bad?
I like some party based games. What I don't like is bad controls. With most AI controlled characters fighting like morons (although disarming traps can also suffer - not just combat), the quality of the few that don't is probably enhanced in comparison. Summoner 1 has an optional fight with golems. Not much room to manoeuvre, but at their speed 1 survivor? Who ever you aren't controlling doesn't even try to hit from range/ behind.