tl;dr Psych issue, he got lazy, detached and depressed. He blames AI for it so decided to set it aside. If I were to guess his depression is due to something

tl;dr Psych issue, he got lazy, detached and depressed. He blames AI for it so decided to set it aside. If I were to guess his depression is due to something physical (my belief is that it always is) and all AI did was to allow him to be productive a employee despite deepening depression slash burnout.