Agreed, but I think it goes beyond tunnel vision and sunk costs. He clearly likes helping developers! He is a good-hearted person who will feel bad screwing ove

Agreed, but I think it goes beyond tunnel vision and sunk costs. He clearly likes helping developers! He is a good-hearted person who will feel bad screwing over a bunch of people who depend upon him. The main thing that's getting him to shift is that now he has a spouse and a child who depend upon him much more directly, and so he's even less willing to disappoint them.