And what verification do you have of that? Because I don't see them selling a TV that can't be hooked up to a single bluray player with one cable. They obviously are not split (as a limitation) if they can run 30hz with one connection, OR 60hz with two. The tv isnt telling the card it is two displays unless the TV is set to do so, apparently, seeing as there are plenty of people using them at 30hz with one connection.
Maybe it is a flaw of the controller, that the controller cant handle 60hz with only one connection, but until I see something stating that it is indeed the problem... At any rate, if this was true, then people who own the expensive 4k TVs with proper controllers in them need to report in somewhere on the net.
That still doesn't explain why DP lists signal frequency specifications, if you supposedly dont have any need for it. All digital connections have a clock frequency. A purely analog connection is the only kind that doesn't have any clock at all, and you are never going to have that if you are trying to run any form of digital equipment, you know, like your entire computer.