I'm sorry you've misunderstood what this is. This is a Go Framework for microservices development. It's what you use to write services. It's like Rails or Spring. Kubernetes is for running applications not writing them. Kubernetes no opinions about how you write software. We encapsulate the underlying infrastructure and provide a framework for the developer to literally write business logic.
As mentioned by the other commenter one of the big features is service discovery and load balancing - it seems like micro is stepping on k8s feet here and is a bit more than just a framework.
I could see using micro on bare metal (with all features) but trying to get the grasp of mixing with k8s (with all of micro's features). I'm assuming no one is using micro's load balancing and service discovery over k8s? I guess the broader question is, is micro highly coupled to all of its features/functions or is picking and pulling parts of it workable?