I would argue that promoting or celebrating an malicious (and illegal) act against anyone... much less one perpetrated anonymously toward a religious group that, for better or for worse, many people genuinely believe in and support is pretty ****ed up.
You wouldn't like it if a group or cause that you enjoyed or believed in was the victim of cyber attacks. Why the hell would you celebrate anyone else's misfortune?
"Heroes" don't generally feel the need to hide behind anonymity and brag about the cruel things they've done to others on the internet.
A "peaceful" protest doesn't involve Denial of Service attacks, prank calls and faxing death threats... nor is it generally perpetrated or documented "for the lulz"