I thought the same thing as you and I find it disappointing to see the same models several times in a row in the passthrough videos it's a wasted opportunity in my opinion but hoping that once the technology is well in place more and more more varied models will engage in this type of scene
Sadly I don't think it's possible. I asked here a long time ago for the Jewelz Blu Dezyred VR video, and got no response. Looked all over for it with no luck too. I think they have it pretty well locked-down to their site I guess...