Under Danish law, if I make a happening for the purpose of making the local stamp collectors association, or anyone lose their collective cool and attack me, I will be dragged away and fined for disturbing the peace.
I really see no reason why stamp collectors should be differently protected than Muslims.
I would agree, however, that both stamp collectors and Muslims should be required to keep their cool, and that we should not enjoy any such protections against mere insult.
On the other hand this guy does his best to shove the burning stamps up the noses of the collectors, ...
And authorities in Muslim countries abuse this to divert attention from their own abuses.
So yeah, I don't know, it's complicated.
It's a very apt demonstration of "non-hateful" hate-speech.