Well what happened with Meltzer, Chev, and Maccle was like a one time exception. It's not like Apoc was perm banned from the league. If 3eVolt can't win with those 3 being allowed to play for them the rest of these matches, they don't deserve to be in the pro league.
Much of this league has been experimental like waste said, and it was accompanied with many rule changes such as the double regging and reg hopping rules. As for Bill, he never played for us in the TNWL. He joined around 2 weeks ago before this rule was made and he is in a similar boat as you. The difference is that there are no current matches for him to affect. BeanBean however did play for us long before the North situation sparked the regiment hopping actions to be taken.
With your logic, we might as well re allow all double regging because chantakey used it in his group stages.