AI makes the session feel smooth, and smooth is the signal motor-learning research tells you not to trust. Which reps you keep is now a decision you have to make on purpose.
A model will write kinder feedback than you will. It still can't tell you there's something to address, when to raise it, or when the right move is to say nothing.
Martial arts makes experts redo the basics on a schedule. Software has no such mechanism, so beginner's mind stops being a virtue and becomes a budget you spend on purpose.