I also fail to see how this is any different than coaches leaving to prepare for their next job before the bowl, which most of them do.
I don't believe Chryst coached Pitt in their bowl game after taking the Wisconsin job before the bowl game. If that's the mentality of coaches, why should players be held to a different standard. You want to force coaches to finish out the season, and prevent schools from talking to other coaches until the bowl games are done, then I'd be open to discussing players playing in bowl games too.