A lot of Indians I know thought the N7 was neat and bought into Nike's claims to have finally unlocked the secrets of the Native American foot. We would do well to remember that this is far from the first time that people have made claims about the alleged physical differences of the "Indian race." Usually these differences have been connected to other differences, for instance, intelligence or capacities for "civilization."
If 200 isn't enough people, then some number (2,000?) is enough. If Nike reached that number, it would know for certain if Native feet are statistically different from non-Native feet.
Until it reaches a sufficient number, neither Nike nor Lyons knows whether there's a difference or not. Therefore, neither can say whether the shoes are racist or not.