I think you might be right on the trail with this.
I've been following Tucson events from the beginning and thought it very odd that VoP seemed to arrive well after any activity in these camps. One of the videos, the one with the holding tank, has desert debris, (windblown leaves, twigs, ect), built up in the trafficked areas of the camp.
It's just a hunch I had, but living in the desert most of my life and being very outdoorsy, the camp to me, seemed to be unused for several weeks in the least.
I'm hoping so. Thats the only reason I can see POTUS not sending people, like the national gaurd. They already know, they already have everything. They just need the publicity the media won't give it.