Not to mention that the white shorts were from "candid" footage so to speak - the bodycam footage was certainly not staged for SM posting.
I am in no way judging them for not especially roughing it on this trip - I certainly would have been in hotels the whole way! But it seems very plain to me that they, or at least she, was not actually camping out doors very much on this trip. Depending on how much $ they saved up in advance, staying in hotels and so forth may have contributed to any money stresses that were building between them. MOO - just speculating.
Edit - to be fair, the Moab footage was taken after they had spent the day at the cafe or whatever it was in Moab. She may have cleaned up there, or cleaned up before going. Still, I think overall she was in hotels or lodges a lot.