I kinda doubt, they did it just to please squarewindow's complaints (even though they were pretty tenacious). XD They made them 60 fps simply because they could now. The next gen consoles do apparently have the power, to render the victory/loser poses with improved antialiasing, depth of field in the backgrounds and now also a higher framerate.
I thought, CyberEvil had the Xbone version...?
By the way, someone posted these screenshots on Neogaf:
The IQ looks a lot better, even though there's still aliasing going on.