Then the problem is not 60fps, the problem is the lack of power in next gen consoles. In that statement what they are saying is that they don't want the game running @60 fps even if the PS4 could, which is ridiculous, and the sad thing is that some people agree with that.
They should be saying they wish it could run @60fps since it would be beneficial but the PS4 isn't capable of doing that.
That's just it, many developers will never do that. Even if ND or RAD had a GTX 680 under the hood of the PS4, maybe even a Titan, my guess is they'd still go 30fps simply because it's about the aesthetic package more than that extra smoothness. I'd imagine far more people care about a game having class leading insane visuals than they do that extra smoothness in 60fps, depending of course on the type of game. That's what it all boils down to.
For me personally, I'd have been really disappointed if The Order 1886 was 60fps. I'm honestly not at all fussed about the extra frames so long as it's a steady 30fps, but the overall presentation and aesthetic package? Well look at it. It'll be the first game I've EVER played on any platform that will feel close to essentially playing a CGI movie, and that excites me so much more than 60fps could.