We make an effort to import new kernels on a regular basis. Our most recent Fedora 20 kernel is 3.17.6-200.fc20 which does seem to be slightly behind. kernel-3.17.7-200.fc20 was released last week. I'll notify our kernel team and make sure it gets imported.
I'm going to go ahead and close this request in order to free up your vote. You might be interested in this previously opened request:
Thanks for the feedback!