I can understand some very niche use cases, so it totally makes sense on the Pro. Like if you are using an iPhone for professional video work (sounds suspicious, but let’s go with that) then you can shoot in 4k raw directly onto a SSD. Or if you are doing some video editing on iPhone and want to hook up a 4k display.
People get so weird about this stuff though. I never once heard a complaint that iPhone was limited to USB2 speeds till the Pro finally upgraded to Usb3.
Not even sure I’ve plugged this iPhone in… and my last one probably only to charge it. WiFi is fast enough y’all.