There was another note that Red Hat might not continue to
provide newer kernels via http://people.redhat.com/. This was done very
successful in the past to e.g. maintain the RHEL5 kernel and get a good
and stable collection of patches together. That alone sign that it is
best to buy support contracts from Red Hat.
As market leader Red Hat could in the past work on further technical
improvements to improve the customer base. If they now experiment on
how to put technical limits into their distribution to gain further
income or limit either Oracle or other competitors, then this is a very
bad sign or just a management hickup.