The Boxabl house folds up much more compact and in their render at least it is being delivered behind a pickup truck. So it seems they are solving a different problem and might be able to get these things into places a large tractor with an extra-wide load might not be able to access. Though that is negated somewhat if you need a crane to deploy it as the video shows.

Isn't the insulation on those types of homes terrible?

It doesn't have to be. They have a video where he hits the exterior with a propane torch - not all construction materials are the same. These appear to be quite well constructed and as long as they have figured out how to prevent air infiltration at the joints once it's unfolded and fully assembled these should be far more energy efficient than the vast majority of tract housing being mass thrown up.