Not sure why everyone gets so bent out of shape about advances in shoe technology. If you have any sort of understanding of mechanics/physics you would realize that at the end of the day a shoe is a passive device and does not "give" any energy to a person. Energy is put in, and then you get some percentage back out that is less than 100% of what went in. The advances Nike and other shoe companies have been able to make are simply reducing losses and moving that input to output ratio slightly upward. There is a limit of how far a passive device like this can go... you can't go beyond 100%. All the energy to do the work of running is still coming from the human.
Until shoes start to become active devices with their own form of energy to give to a person (i.e. battery etc.), I'm not sure why people take issue with engineers working hard to improve the energy return efficiency of some foam, rubber, plates, and air pockets. Even a spring is a passive device with an energy return less than 100%, same rules apply. We commonly accept running times ran on a track, which is paved with a passive material designed to maximize energy return like Mondo... but if we do the same thing to shoes it is suddenly impure?
This has always been a thing in sport, the athlete provides the energy by burning calories, and the goal of the "equipment" is to waste as little of it as possible allowing more of it to do work. Let it go.