There is zero chance that FB/Meta is complicit in this. The occam's razor answer is that the Iranian government has figured out an attack, and a bunch of FB employees are frantically trying to mitigate it instead of reading HN.
I doubt Iran needs to go to the extent of hacking Meta to block a few random users in Italy? They've achieved their main aim of quelling protests by simply blocking at the network level. I'm skeptical about the original bug report.
