They could have made it stream wirelessly from your MacBook
yeah, no. People really don't understand how much bandwidth you actually need to stream even normal 4k 60hz video, let alone something like this. For reference, when I was figuring out how to dump my pc in the basement and have the monitor in my office, I had to run 12-strand fiber cables to do it.
you need about 20 gigabits per second for 4k 60hz. Or more, for higher resolutions and refresh rate - which vision pro has, compared to ~6 gigabits per second, that you need for your quest pro's resolution. That's why they make these.
And having compressed video streaming to a VR device sounds like my worst nightmare.