There are other rules in a show cause other than the transfer of violations. Michigan will absolutely have to follow those if Moore continues to be head coach. There is a reason why most coaches hit with season or longer show causes no longer continue to be employed by their schools, even if they are good. If any infractions occur, even minor cheeseburger ones, or self reported ones that many colleges report a ton of, the NCAA is more likely to be harsher with a coach on a show cause.
And like you have been told countless times when you repeat that sign stealing is legal, it is only legal when it is done through legal scouting means.