extreme it might be, but its pretty logical(sound reflection, absorbtion and relative density of material where the sound travel before reaching our ears).
Anyway, this kinda info is nothing new in guitardom. There are info online on it as well, just need to search round for forums etc to read on. Hehe, guitar and amps have existed much longer then some here, of course there be lotsa ways throughout the years people try to improve on or innovate to see how it affect the sound.
So yeah, dont be too surprise next time when someone says that even a rubber band holding a pedal is better than screws(which, already happen... hehe), it a strange world out there and if new to guitardom, theres a lots more to this kinda things, be it logical or illogical..
have fun