Probably has been brought up before, but: I vastly prefer being able to take along companions based on their personality + story rather than their mechanical viability in my party composition. If I can't stand Astarion, but am not playing a rogue, he'd be my only option to bring along, and I'd feel as limited by that as I do in other RPGs that basically force me to bring along a character I don't like just because they can heal or disarm traps or what have you.
Or you play without being able to disarm traps and act accordingly by using less trap intensive routes or invest more in other type of solutions for traps.
