The issue isn't "test kits". Its labs to run the tests. It seems like the CDC and state governments are addressing that. Not really sure what this is trying to solve.
You'll be fine. We run a number of AKS clusters and they have all been rock solid. I think the problem is people hear "managed cluster" and so they don't think they need to understand how k8s works. Follow best practices (resource limits, etc.) and you'll be just fine. We've even tested out the upgrade flow on a live production cluster and it was butter smooth.