I agree with you in general. Many small projects with limited popularity are one heartbeat away from disappearing forever. However, projects that are absolutely essential to prevent “collapse” as the video suggests will almost certainly find new life. Red Hat, Google, Canonical, Valve, Synology etc. that all rely heavily on open source projects will pump cash to keep them alive if it comes to that. It’s not true across the board universally, but in general collapse is not imminent.