Why can't bots pick up tomes and grims?

With how the matchmaking is sometimes, I can enter a mission through quickplay and get nobody in my team in the pregame lobby, intro loading screen, and throughout the mission. In those cases I am left with bots, which would be fine (despite their inferiority to regular players) if they could only haul scriptures and grims like the good little mules they are.

You can ping it, wait by it, twerk in front of them, nothing. No way to get them to pick it up so far as I can tell. But with the absolutely tremendous amount of scriptures required by certain contracts, I would appreciate the ability to farm scriptures with bots if necessary. Why can’t they pick up books like they did in V2?