I don't remember Prohm saying he would serve a punishment. In fact, I remember him saying the opposite. Something along the lines of not having any restrictions once he returned from the wellness clinic.
When he said that he was referencing his return to the team, I don't know if him being held out of a scrimmage would fall under that or not. To be fair I am only repeating what was said earlier in this thread, I wasn't trying to say I have new information to add.