I actually toned it down to 5% in the newest build, buuuut yeah making the player wake up from attacks would make sense to implement, in addition to nerfing confusion
Edit: Yeah, int loss can be really brutal. Though there are plenty of options to reverse their effects. Either by using a Gummi or Cleanse Orb or finding a healing well. There's also one rune that prevents int loss from even happening, though that one is really rare.