No, CF was fast but pretty easy to control because he had decent melee range, his falling speed was managable and even the Knee was easy to time, whereas Fox falls like a brick and most of his attacks require extremely close range. Note that even among the best players, Infinite shine was mostly plausible, not possible.
Pretty much and playing Fox requires some speedy fingers for performing the simplest of combos. Well simple in competitive terms if you know what I mean.