BD up until very recently only focused on hydraulics were which were extremely loud, expensive, bulky, and expensive to maintain. It was basically impossible to find a use case for such a thing that didn't have to cohabitate in spaces with humans. They also lacked the modeling for it to do much of anything other than walk, and even then recent advances in ML have in only a couple of years massively outperformed their in-house attempts that took 20.
BD was a money-burning machine that suckled off the teat of the miltiary industrial complex, where billions of dollars can be casually lost and there's no accountability and no one notices its gone. Their tech was cool, though, and their engineers did awesome work.