I really doubt that people who can’t install an ssh key should be able to practice software engineering. Sometimes, I think that software engineering should be a protected profession like other types of engineering. At least it will filter out the people who can’t keep their OS up to date.
I felt more comfortable maintaining a VPS back between 2005 and 2015, but at that point attackers were dramatically less sophisticated and numerous and I was a lot more overconfident/naive. At least for solo operations I'm now inclined to use a PaaS… the exception to that is if said operation is my full time job (giving me ample time to make sure all bases are covered for keeping the VPS secure) or it's grown enough that I can justify hiring somebody to tend to it.
I haven't rebooted my DO droplets in something like 5 years. I don't monitor anything. None of them have been "retired".
It's way way way way easier managing a basic VPS that can be highly performant for your needs. If this was 2010, I'd agree with you but tooling and practices have gotten so much better over the last decade (especially the last 5 years).
I can see though that today's AI models could eventually replace the human in the loop and truly automatically fix every possible situation.