[acdha]

Is it really more likely to believe that someone who is not otherwise in the PaaS business is going to find it easier to run 5+ nodes of other services instead of, say, two nodes running their application directly for failover/HA?

This is not to say that Kubernetes is bad but … it's a commitment which isn't appropriate for everyone. If you aren't exercising its abilities heavily, that's probably going to be a distraction from more pressing work unless you're scaling up heavily right now.