I know the rule, but at some point the NCAA has granted enough exceptions that the exceptions become the rule. And asking NCAA forgiveness instead of permission makes it a risk, not an absolute.
PS, are you absolutely certain (wink wink) that Berge's redshirt was voluntary? He competed only at the Princeton Open in early November -- not even once while Jason's leg injury put us all on Code Red. Not even in non-NCAA events (no freestyle, etc.). For him to not compete once in 4+ months ... many coaches would be able to provide a reason for that if asked. (Didn't Pitt find reasons the day Phillippi's transferred?)
That said, IDK if it was ever being considered (aside from board theorizing). And it's moot -- he's back and good for him. Hopefully he has enough time to get his conditioning back.