Boy, Muslisms sure seem to get a bug in their ass pretty easily. Is it even controversial that Islam was spread by conquest? (Just as Christianity was.)
Muslisms are not part of the Pope’s constituency. In fact, I bet there are plenty of Lutherans out there that wouldn’t appreciate the Pope’s feelings about them, either, but it’s not a scandal. Also, let’s remember that there are muslim leaders out there that have plenty of interesting things to say about christians (and jews), yet that doesn’t seem to be news.
There is apparently a meme that the Pope is supposed to be PC about religions that by their very nature disagree with Catholicism. This kind of fake ecumenism is a shield for religion to prevent people from seeing that it is an inherently divisive social phenomenon.