There is enormous space of unexplored manufacturing processes and product designs, simply because they lay outside of conventional design canon and standardized engineering practices.
If anything, non-standard not-well-known techniques have only been popularized recently because software is used so much in hardware design these days that some hardware designers have imbued the ethos of FOSS. Without that I doubt people will share niche techniques like this which have the potential to make lots of money.
It's refreshing to see new techniques/ technologies used with things like metal and glass.