They can't devour your host brain
*claps dust off hands*
Of course excuses are just excuses but unless the game makes a point of telling us we're at risk of having our intelligence devoured, I won't make a point of it either. Maybe when we next encounter the Illithid faction our training wheels will be lamp-shaded...or have a hat put on it...it will be addressed I'm trying to say.
For the record I'd love an intro that makes us terrified of entering combat but we're not going to get that.
And again, it's not just the intellect devourers. It's MOST monsters in BG3. The only ones that are kinda sorta okay are goblins and their allies.
Except that they like to shove a lot... And throw bombs and shoot magic arrows that send people flying... And some - many - are really buffed beyond Goblin Boss stats... Hmmm. Wait. Maybe the goblins don't have proper D&D behaviors and stats either. I mean, some do, but many don't. Many aren't even close.
So what in BG3 actually acts like what it should?