I was wondering that too, but the problem does resonate with me, because something similar happened to me as well and I’m reasonably technical :)
My Facebook account was protected with 2FA and wasn’t compromised — no shady posts etc. In fact I don’t use Facebook much at all, only logging in occasionally because a local sports group uses it to coordinate.
It was, however, flagged and access denied. The way out was to provide government-issued ID to Facebook to get it unlocked. I suspect it was reported as “not a real person” for some reason. I did spend some time wondering if it was even worthwhile keeping my Facebook account — even after they unlocked the account I’m not sure.
Anyway - it’s just a cautionary tale, don’t get too attached to anything on a site you don’t control.