Yeah, I think it's overkill unless you have 20+ nodes. When I switched from just a few VPSs with containers deployed with docker-compose, to deploying and administering a highly-available k8s cluster of 9 nodes, I'm pretty sure our cumulative uptime actually went down. There's ironically more points of failure that can bring stuff down due to the extra complexity.

Its a huge learning curve, but once it clicks and you get it running you'll never want to go back.