Right, Red Hat needs to have something about Fedora, fairly prominently placed on their on their site. The traffic
redhat.com gets is RHEL related, and thusly the page should look like
redhat.com, and lead folks gently to the different URL and very different look/feel/voice/content of the real Fedora home. Likewise, a fedoraproject page that mentioned Red Hat would look like a Fedora page.
Neither creates or even exaserbates the branding confusion. Remember when folks used to think Mandrake was further along than RHAT b/c they were on version 7 when Red Hat was only on version 6 of "Linux", or how SuSE would use it to their advantage and slap in a test kernel and rev their release days "don;t settle for Red Hat 9 when you can have SuSE 10! Now with unstable kernel!" ?
It took some education that began where folks were (completely ignorant of Linux v. a distribution), to get them where they are now (only mostly ignorant of Linux v. a distribuion) .
Red Hat invests more into and draws more from Fedora than any entity on the planet and so they are linked. The name is derived from Red Hat's brand, both sites mention each other and position the relationship, and a simple "this one is blue, that one is red" isn't going to instantly create a distinction when the subtext is obvious.
IMHO if Red Hat and Fedora ignored each other and pretended not to know each other it would seem confused, fractured, or even sleazy... sort of exactly how it was seen at launch when RH had marginalized it to "hobbyists" and declared it "unstable for production", and alluded to the possibility of monthly releases in order to ensure enough of the deeper pocketed folks bought into the new horse pill and didn't stay in community land.