That's like asking whether it's more efficient to transmit Internet over telephone lines versus fiber optic ones. There's a path dependency to all things. Sure if the SSE knew upfront its ultimate end state was as such, but it wouldn't.

It'd know it needs data centers, ahh and probably a large security perimeter around those. And look at that, the proliferation of data centers has effectively turned the non-data-center land into the enclaves, etc. etc.

But still, are you aware that getting a single Starship just to Moon will require 10-20 Starships to refuel it?

Even the optimistic case of Starship hardly makes any dent whatsoever in this equation.