Right or left foot ?
Does it matter to anything ?
Use the left foot players from the left side of free-kicks or corners ?
Use the right foot MCs or STs in the right side of the center or in attack ?
Are either foot players specials ?

I 'm saying no to all of them (for some, as free-kick specialists I have examples).
It's just a cosmetic of the game. It's only the talent of the player (the good programming) or the form that matters.
but what are you saying ?