More evidence — as if any were needed — why nobody should take this kind of “scientific theory” seriously.
Stop typing on your keyboard, switch off your computer, and never again use teh product of modern technology. All modern devices with electronic circuits depend upon the scientific theory of bandgaps with conduction holes and electrons to operate.
Lots and lots of scientific theories are well established and help us get through our daily lives. Some ar bunk because they do not stand up to careful scrutiny when all the evidence is examined. That this theory may have been overhyped nonsense does not invalidate all scientific theory.