As a new shooter, I seem to recall all of the coaching I received was after the COF which makes the most sense and I then have time to process the new information. I don't know how safe it is to try to coach a new shooter who has hearing protection and a loaded gun in their hands. Now, as an experienced shooter who doesn't shoot any major matches and hear the phase "it's just a club match" when something questionable happens with an experienced shooter or "hey, you forgot those targets". I don't see it a lot, but when I do, I'm sorry it does bother me a bit.