At times like this and the big Fastly outage roughly a year ago, choosing to host on a simple, independent bare-metal box doesn't seem like such a bad strategy (as long as one has backups for disaster recovery, of course). Sure, other things can cause downtime in that kind of infrastructure, but at least my service isn't likely to be taken offline by someone else's configuration error or deployment gone wrong.
Not a useful comment 20 minutes into an outage. The internet is an interconnected web of dependencies. Unless you are Cloudflare/Akamai/Amazon/Google there is no self-hosted anymore. You can host in your basement if you like but you're still dependent on your ISP.
Ironically this is exactly what increasingly centralisation weakens. The huge cloud providers have eroded "an interconnected web of dependencies" into few huge server farms servicing everyone else.