No one cares about these protests who isn't already voting blue. If anything it alienates the majority of people who find endless futile protests annoying. Shutting down the account intentionally is so extraordinarily stupid politically that it seems pretty plausible that it was algorithmically flagged.

Trump has done many genuinely scary things but shutting down a social media account then turning it back on 90 minutes later is not exactly sending tanks into Tiananmen Square.