Of course it would, but I don't see a reason to rant about it.
Maybe they could add (future proof with usb3 to be activated)
FireWire 800 works flawless and is available on all machines.
It would be different if the image quality or speed was better on usb3.
I would love to be able to work with usb3 because the cables are less stiff and I fly a lot so everything I can save on space and weight is a big plus.
But I'm just waiting for it.
Anyway when you spend that amount of money on something I expect you to do your homework and when you ask a dealer they will say that it's not supported yet, same with Moire, when I started MF I knew all the pluses and minuses, I'm not spending that amount of money without knowing everything from a-z.
So for me it's just a matter of wanting to find something and rant about from your side, you already made 100% clear that you like the d800 more than MF (and that's ok) so why bother...... I'm working with my DSLR, Fuji, MF etc. and choosing which one I need for the end result, my end result is exactly the same with FireWire or USB.
And if I don't care,why would someone that doesn't shoot the format anyway ?
Not saying I would love for it to work, but I can spend my time better than worrying about it, and I OWN one