Two things. First, where this line is may be clear, especially to a canon lawyer, but if a clarification is not issued, who decides in the absence of a statement from the Vatican what is a change and an implementation? By introducing this distinction, all we do is move up the language one level, while the principle is unchanged.
Limiting ourselves to this particular topic: the text is clear enough “viri selecti” It’s obvious on its face that including women in the rite is a violation of the rubrics. And frankly, no one disputes that. I’ve never once encountered anyone (not anyone in a position to know better, surely not any bishop) who defended the practice by saying “this is a legitimate reading of the rubrics in the missal.” Instead, the position is always defended (if at all) by saying things like “this is what the ritual means or intends.”
Keep in mind that a different topic (one not so clear) might very well be very different situation.
More about that in my final paragraph…
Finally, unless one asks, how does one know if such permission has been given? I thought the Catechism teaches us that in each and every circumstance we are to avoid rash judgment by assuming the most favorable understanding of the actions of others. If we are to do this with each other, should we not do so with our leaders?
Again, limiting ourselves to this topic.
If such permission had been granted by Rome, that could only happen if a bishop actually requested such permission. Think of it this way: any bishop who would make an effort to ask for a dispensation would surely share that fact openly–at the very least with his pastors. After all, why ask for the permission if he’s not going to tell the pastors that he was given permission? Not-doing-so is plain illogical. How long would it take for that information to get out there to the public? The idea that permission of that sort would somehow be kept secret just doesn’t make any sense. Do you see what I mean here?
We (meaning the general Catholic public nationwide who follow this sort of thing) know that a certain Cardinal in Boston (whose name I won’t mention out of respect, since I don’t want to make this about him personally) did ask for, and did receive, such permission. Think of how widespread that information has become. Next ask yourself “if my own bishop had such permission for his diocese, what is the likelihood that I did not hear about it?” I don’t know you personally, but knowing you from CAF, I gather you’re rather informed about what happens in your diocese. Do you think it would have happened, but you never heard about it? No one mentioned it to you? I don’t see that as very likely. Yes, there is the “benefit of the doubt” but that’s not meant to stretch the limits of reason.
And let’s get back to the Good Cardinal…realize that the very fact that he asked for permission, and that permission was given tells us 2 very important things. 1. The Cardinal realized that to act on his own would be to act beyond his own competence—and that’s saying quite a bit, given that he’s a Cardinal. 2. The Holy See by granting that permission (rather than saying “you don’t need it”) expressed the fact that such permission is indeed needed.