There’s a big hurdle in communicating something like that to the religious people in the middle east, versus informing a domestic population.
The issue is that both the senders and recipients of the “message” seem to believe that the actions are representative of the nation even when it is clearly not. Especially because both parts have an interest in believing that it is.
It ought to already be illegal for individuals to deliberately interfer in international relations. It’s not like they can plausible deny that they’re aware of the consequences.
Personally I think that if they really believe they have a message to the Muslim priests that they should then go to the Muslim priests in the middle east and burn the books, instead of hiding behind “freedom of speech” in a safe country. They won’t do that because they know of the consequences. They just don’t want to deal with the consequences of their own actions, but by doing it this way, everyone else has to deal with their shit.