That's one possible answer. Another though is probably Francis's style of bringing about change is probably more different. The two things he is trying to do is both root out corruption and clericalism at once. 

If he makes unilateral decisions like what you are proposing, that may have a short term impact in terms of change. But he will be making reforms ironically in a very clerical manner. What would happen for instance if the next Pope that comes after Francis just unilaterally decides to re-classify every over again. Because that theoretically would be possible if he is the Supreme Legislator. 

Also on the bishop's part, I highly doubt that is the case because as we have seen even with priests it's hard to get them prosecuted because of the problem of statue of limitation cases globally combined with the incredible burden of proof in even proving those accusations in the first place.