Apart from the times when they dont. Last time I played with one mate and 2 bots, both of them stuck every time I asked any of them to pick up a book. One time they stuck on Against’s second grim for good. And I mean for good - they just chilled there on that windmill until we beat the level just the two of us.
I agree that the AI utilizes some builds significantly better than others, but then again - you never know how they will screw you over 
So bottom line: bots are minimal stupid placeholders in a team-oriented game. Cannot find a team, oh well, you’d better be good at soloing.