The only real issue I'm seeing in these videos is that the results aren't in sync. I would chalk that up to the fact that it's hard to match step to step on both setups. The 2nd issue I'm seeing is the horrendous tearing between both sets of cards. Yet some only want to label CF as having runt issues, lol. The 3rd thing I'm seeing is that CF does seems to have delay in panning. Which doesn't look at responsive or as smooth as it should be. Which looks to me that CF is actually providing lower frame rates. It would have been nice to see a frame rate counter when those videos where provided. That would tell the whole story as to what I'm seeing.
But as I'm reading the replies on those videos is does make sense, to me, why vsync is being questioned.