I think it's bimodal because there's a roughly bimodal distribution of high level attitudes among programmers. There's one clump that are willing to be humble and interact with the AI in a thoughtful, careful manner, acknowledging that it might be smarter than them (e.g. see Terry Tao's comments regarding mathematics usage about how in order to get good results he takes care with what he puts in (and imagine what "care" means for a professional mathematician!)) and there's another clump who aren't.