For what it's worth, their cryptocurrency project is absolutely NOT gone. It's gone in the Facebook-ownership sense (in that it was barred from continuing the project by the SEC (?)), but the code and teams are absolutely still iterating on what began at Facebook. Aptos, Sui, and 0L are all projects that have launched to fanfare within the last year.
I'm up for lambasting Facebook as much as the next guy, but I don't think government blocking their projects existence counts as failing.