Are you sure? This isn't my subject area but CRI-O looks like an alternative to containerd and implements the OCI compliant runtime like containerd does. And then there is a 3rd which is docker engine which is the one being dropped.
Sorry, I mixed up CRI and CRI-O. The roadmap is to remove dockershim (the interface to docker-compatible container runtime) and use only CRI - of which containerd and CRI-O are two compatible implementations.