After reading this thread I have determined lightfoot is all based on playing style. I run around the entire match, so of course lightfoot is beneficial. Allowing me to run further, catch up to people, and in general getting into more battles. For those that are patient/calm or highly skilled distance shooters only needing to run when absolutely necessary, of course it's a waste of a gadget space.
So the point is certain gadget usefulness are based on player style not player skill.
Also I will add, just like when I play a football video game, I turn the game speed (not clock speed) all the way up, because slow games aren't as fun to me personally. This is what I equate the lightfoot with, turning up game speed. Am I the only one who thinks the game was a little slow?