Hearing the phrase "thousands of CRDs" can do funny things to people. It certainly makes me feel uneasy.

I'll take the K8s API model over aws/gcp/azure/etc specific tools. I hope it expands to cover everything I need.

As an alternative, you can use terraform to manage different infrastructures and run terraform from Kubernetes. Terraform is standard-de facto for those things and lots of high quality providers already exist. Also its language is quite expressive.

Why not both? ;) - https://github.com/crossplane-contrib/provider-terraform