It would be hilarious if they downgraded by being more aggressive. For example: It needs to score n points worth of aggressive moves that are not the best moves. After screwing up the position by n they can go back to playing the best moves again.

Otherwise you wouldn't really be learning anything useful. You would end up with an opening vocabulary that good players would easily punish. If you play crappy gambits leading to positions you know well the better players will think highly of you.

Best way to learn is to play the hardest possible engines and just take back moves when it becomes evident you've screwed up.