Sure, when you've redefined K8S as being IaaS then you can make the claim that it's IaaS that sells. I can make lots of claims if I'm afforded the luxury of redefining terms.
> But I think several of its characteristics resemble IaaS more than PaaS.
I disagree, but I understand why someone would think that, and if I were given an assignment to argue the point then I could probably convince people that K8S is IaaS, too. BUT, I think it's important for us to recognize that K8S is a platform, and by definition, anybody providing you that platform as a service has provided you a PaaS.
Maybe we should just say people don't want IaaS or PaaS, they want Kubernetes as a Managed Platform, or KaaMP! And who doesn't like camp?!