not a nike shrill
While I agree with you I've also seen great performances by athletes wearing Skechers, Adidas, New Balance, Brooks, Mizuno, and Hoka shoes for example.
How do we know what's in their shoes isn't 3% more efficient?
While Nike was probably first to explode this onto the scene with their exclusive vaporflys there has been no monitoring of any company's exclusive shoes other than a few posters on LRC.
Maybe we need a WADA equivalent of shoe testing - like for a patent office before it gets worn in competition. But then we need a science of sport that outlines exactly as what constitutes a benefit.