All of your points only considers the community itself, which is not my argument.

I'm mostly approach this from technical standpoint. It's impossible to have 100% uptime if there's no horizontal scaling capability. For example on updating version, currently the instance will need to shut down for maintenance until it's finished and usually there's still some issue to fix. If horizontal scaling exist, the instance can update server (or add additional one), move the traffic a bit to test it, and then fully rollout if everything going well.