It was planned for months, openly on Facebook in plain view of everybody. Remember that when politicians call for more intrusive surveillance in response.
Yeah, it's weird that the discussion has centered around censorship, rather than like... why didn't law enforcement shut this down sooner? Or at least properly prepare for it?
Law enforcement/spy agencies are never blamed for not catching them sooner, even though most of the time they were already on their terror watch lists and even arrested for similar stuff.
But "somehow" the discussion always shifts to the government needing more surveillance powers to catch them next time.