The main goal of the Cubians was to build at least one quality room that can act as their shelter and protect them against hurricanes. So rather than trying to build an entire house with the best resources, they will focus on building at least one quality room and as time goes on they can extend this in the future. This is since time and resources are not always easy to come by and they call this 'progressing developing houses', where the home will evolve over time as means and resources grow.
It's an interesting concept that makes sense as considering how in life we think we often need everything before we can even start something. So it may be worth using what we have now and then deciding what we can do later on with it. The main thing in applying this concept would be to remember that this is a core housing foundation that is being built and there should be considerations on future scability in mind.