Time will tell if their treatment works but note that actual numerical limits are suggested here on the number of mutations that can happen randomly at the same time. Mathematics, not religion, is the enemy of Darwinism.
Krakauer notes that many people study intelligence but no one studies stupidity. That may have to do with the social awkwardness of explaining the research project to prospective subjects… 😉
This kind of find is treated as problematic because it means that the missing link is still missing. Nobody is the subhuman. That’s not good news for a Darwinian approach to human evolution, in which someone must be the subhuman.