These things are not autonomous. They are overgrown remote controlled devices. Perhaps you are under the impression they move about in the same fashion as Google's self-driving car?
Now there's a good example. Google's self-driving car is advancing the art and it is doing so with the goal of delivering a product millions of people can use. What are they focusing on? A remotely controlled car? Nope. No, they are focusing on sensing, algorithms, computing and all of the core items I discussed in my prior post. Their work is useful. Little magnetic cubes or pneumatic jumping machines aren't even in the same orbit. do you realize that there is virtually no difference in the way the Boston Dynamics machines move and perform when compared to what MIT and others have been doing for decades? Sure, they can pull off better tricks because computers are better now and that's about it.
Don't get me wrong. I love them. Hell, I wish I had the pull to extract that kind of money from the government to play with technology like that. I'd be fun. In the real world you'd implode inside of a year (or a few) if you didn't advance past that stage quickly.