oh really
" in a matter of minutes they can transition to Oracle or Red Hat because we're all compatible."
This kind is of change can be expensive and time consuming.
I imagine more than a few folks have noted the stability of Debian releases and are working out if the transition there might be a more stable, thus cheaper, place to be in the long run.
Pulling the rug out from under CentOS doesn't give you a warm feeling that RHEL itself under IBM is going to be without uncomfortable changes.