I think that underground or earth bermed homes are often failures. There are different water and ventilation concerns for these. An above ground home is pretty accessible for repairs, but these can be nearly impossible if the home is underground.
This is what kills most "non-standard" homes and buildings - anywhere in the world.
If you build an American-style house in Bavaria it may end up a disaster because nobody around knows the building materials or how to fix it.
It gets even worse when it's entirely custom like this Skywalker style house, where it's a one-off using techniques nobody knows. You need a dedicated maintenance crew for that so they can learn all about it over time.
So something like this could work for a largish company, or a college campus, but as a one-off house it's going to be expensive and eventually abandoned.
