Ayton hasn't improved at all on offense since his rookie year. He still can't dribble. His problem isn't his aggressiveness his problem is that he doesn't have many skills. On days when he's not aggressive he'll shoot 10 high quality shots and make 8. On days when he is aggressive, he'll shoot 10 high quality shots and 10 crappy shots and make 8.
His defensive ratings are now as bad as they were in his second year and this is his worst rebounding season of his career. His PER was 20, 20, 20, 21 in his first 4 years and is now 17.
Watching him as a rookie it was clear that he wasn't going to get significantly better. He never had any flashes of potential for growth. Remember all of those posts about how good he was "for his age"? Well he's now older and worse.