It is relevant, reread and understand the parent comment. Get a managed pg and you'll have the same thing.
It's not a weakness in Postgres.
Managing upgrades in a highly available, close to 100% uptime database is hard.
If you want piece of cake, outsource this service and be happy enjoying the database features working as you please.
But it is not. It's complex to do properly, just like with most if not all other databases. Claiming that it is easy as is just ignorant and spreading such misinformation is bad.