Buildings are easier because pulling cables to connect all the wireless bridges is pretty inexpensive. In an open air environment you have to take a different approach. And up until the last 18 months, wifi mesh bridges technology has not been there. Based on older technolgy that is why I would not be surprised if the cabins saw wifi first since they are cabled much like a hotel. The camping loops are not as easy unless they have lots of open conduit through each loop. From my semi trained eye (network and telecommunications engineer) I do not see a lot of conduit other then at the comfort stations that would have room to hard wire wifi bridges through each loop.
I would hope their network engineers are now looking into wifi mesh solutions. I think it could be done rather well using each wired comfort station as a mesh center and then only need 3-6 mesh controllers/bridges through each loop. Since the mesh controller/bridges only require power and be mounted say 14-16' in the air with reasonable line of site to the next mesh or mesh controller location it is very possible and finally cost affective compared to a few years ago.
For now, like many others, I just get a cable modem kit (even if I have to go on the waiting list) and use my own router to make a wifi location for my iStuff and computer to use.
For those of you in a hotel or cabin without wifi, there are inexpensive solutions to take the in room ethernet and make it a usable wifi when its not provided. Something like
this is very capable in those situations. I carry one for work travel as even in high tech cities there are hotels that only offer wired connectivity in room.