Its not like Insomniac games hasn't made a 60FPS game in years or anything....
They shifted there mindsets regarding frame rate after A Crack in Time. I don't think it was due to 'higher frame-rates don't equal higher scores' but more so they felt ham-strung with the PS3 hardware by using only 60FPS.
So, they dropped there frame-rates in half and with that....lead to mixed results. Latter PS3 Ratchet games after ACiT had solid frame rates but they had drops (Into the Nexus was very odd to play at first due to the frequent drops in frame-rate but perfectly playable), Resistance 3 looked and played great if review were anything to go by, the PS+ Trial of Fuse I played was solid control wise and it looked okay (though its quality was.....something else :l).
But the jump to next gen lead to this problem being gone; Sunset Overdrive is 30FPS but it seems to be a locked 30FPS with very few drops and from the footage of the game online, it looks smooth and fantastic to play
. Great get for X1 owners; finally they experience a 'true' Insomniac game :').
And this Ratchet and Clank? Looks a hell of a lot smoother than Into the Nexus and it looks so much better too (and Into the Nexus was a beautiful game; on pair with the Future tittles and in some case looked better than those games
).
So the debate on frame rate in Ratchet? Understandable considering how it can effect gameplay, but if its a smooth 30FPS, it plays fine. Want proof? Play the Vita version of the HD Collection. Non-Native Res and 30FPS but it plays perfectly fine. I beat Ratchet 2 and 3 on the Vita at least 2-3 times and I had no issues with the controls or frame rate (and I beat Ratchet 3 god knows how many times on PS2 XD).