Sysadmins are not rare they're just not the people you hear about in Silicon Valley bubble anymore. 90+% of businesses haven't moved to the "cloud" (i.e. whoever the fuck's computer you can't get your hands on in case of problems) and even if they wanted to it would make no sense: most businesses just need a basic website and an email/accounting service. Cloud abstractions provide much complexity and zero benefits for such usecases.
> But in my experience people argue one option a lot without being to deliver the other.
I'm in this box. I can't deliver "cloud" computing and from a political perspective i refuse to "learn". Also, it makes no sense for the non-profit projects i work with: the biggest ones need at most a few servers which is still manageable by hand and certainly easier to deal with via Ansible/Chef than via new layers of abstractions and all their new failure modes (eg k8s/AWS).