I think the way the game is running they're much closer to 30fps then 60fps, so thats why they're leaning towards and will probably end up with 30fps, because they would have to remove too much to get 60fps.
You guys saying PS4 is not a big jump because of this make me laugh. In that case PS3 wasnt a big jump over PS2 either because most of its launch games were 30fps. PS4 games are having to deal with the extra issues PS3 games had. For example, the PS4 has to make the jump from 720p to true 1080p. PS3 had to take games from 480p to 720p, but many games still ran below 720p. I believe Metal Gear Solid 4 was 1024x768. On Xbox Halo 3 was 640p.
Also if you think the PS4 is not powerful enough of a machine to be considered next gen, then your standards are way too high. It slaughters the PS3 in every way imaginable. 6x bluray drive, a 8 core CPU, 8GBs of GDDR5 and a 1.8 tflop custom GPU is nothing to sneeze at. Mark Cerny rightfully described it as 8-10x stronger then the PS3.
The over reactions are unfounded IMO. Evolution studios is not Polyphony Digital, Santa Monica, Naughty Dog, or Quantic Dream. They make decent looking, fun racing games and thats about it. They're not the pinnacle of PS4 graphics.