KingpinVR Agreed, moving foliage can be hard for most cameras to handle due to bitrate constraints. I would have agreed with you had tech been stagnant.
But there are better cameras available such as the Black Magic Ursa which VRSpy is likely testing, atleast for non-closeup shots.
Wouldn't hurt much if they specifically shot scenes which don't have much motion in the background such as a desert location, non snowy day on a mountain, a non forrested hill, non windy hiking trail, swimming pool, inside a campervan with a view through the window.. There are ways to work with these limitations.
And some studios have already tried it. Though I agree, it can have mixed results:
https://www.sexlikereal.com/scenes/busty-redhead-zoe-foxy-spreads-her-long-legs-79880
