It's funny that they recently killed self-hosted Jira. If you'd self-hosted you'd be fine.
We're using the cloud version and we're fine too (no outage). What's your point? Are you claiming that self-hosted is never down? Or that self-hosted is more reliable? Because I doubt that. Difference is just that when self-hosted goes down, it doesn't end up in the news.
so selfhosting may still have certain upsides even with such outage