For the rogue, it's not even tactical anymore, they do as they please since they are sure to completely cripple their target and go away

I find it surprinsing that the enemies seem to have no actions to deal with a stealthy attacker. They just stand there shouting threats if you manage to hide successfuly. Even if hidden, the enemies should at least be able to tell the general direction an attack came from. So they should either move in that direction during they turn, or use aoe spells or items to try to locate the hidden character.