Yeah overcommitting on punches is the primary reason you will ever get hit in boxing. You put your body out of a position to defend and more importantly I notice that when fighters are committing hard into their punches they are in a kind of an attack mind set. During this they are just purely focusing on the act of punching and landing their punch. This of course has the consequence of being unaware of everything else that is happening. they see one thing and everything else disappears.

they make themselves unaware.

Thats an interesting phenomena for the counter-puncher to consider. He wants to try to encourage his opponent to overcommit. The only thing to consider next would be how might you go about encouraging him to overcommit on his punches?