What? Are you actually saying that if someone books, checks in and uses a room, even if it's to get the on site benefits, it's a loophole?
If so, I'm sorry, you are crossing in to crazy conspiracy land. The reasons why someone books and uses a room are theirs and whatever they are, it's not a loophole. A room bought, paid for and used as it's intended, which is as a place to sleep, is no loophole.
I mean, truth be told, we stay on site for our entire trip mostly due to the benefits that come with an on site stay. Does that make our entire trip a loop hole, in your mind? If there were no benefits associated with staying on site I probably would stay elsewhere. As would most others I'd guess.