Yes. nVidia has to create a new set of RPMs containing the drivers and other compoents for each new Red Hat kernel release. And, as of this writing, they haven't yet.
This is why we provide the kernel SRPM and source tarball; if there isn't a precompiled binary RPM available for your specific kernel, you'll need to rebuild one for your system. As long as you're using a kernel with a matching kernel source tree (which is pretty easy to do if you're using up2date, as long as you keep kernel-source up2date as well), rebuilding the SRPM is painless.