Read it again. The paper says that if you use a specific quantum mechanics model then you get results with several free parameters. These parameters can be tuned against 15 existing molecules and the equation gives some explanatory power of why the folding is non-Arrhenius.

Several things must occur before you can say it's real: does it apply to other molecules, what are the sources of the differences between prediction and measurement, do molecules while folding really undergo some sort of non-continuous motion and can it be detected and why hasn't it ever been seen before, and do the matching corresponding Newtonian+statistical dynamics give similar predictions?