I have thought a lot about this and have decided (at this point) it must come down to one of two things: (in terms of the console makers)
A. They don't care, since there just aren't enough people buying wheels, much less using both platforms.
-or-
B. They have no idea...
It could be a little of both I suppose... I do know personally that Microsoft pays attention, though I don't know how much exactly.
I have gone back and forth on this over the years, but I find the whole licensing thing stupid now. While I understand it, the defense doesn't make sense. Either you can certify the wheel as working on a platform, or you can't. If you can, why not allow it? If there really are so few people using wheels, the amount made from licensing is but a drop in the bucket!
Both platforms recognize HID, which is how the wheels "talk" to the consoles. All that should be necessary is a manufacturer to provide the necessary driver for FFB, make the wheel compatible and go through the necessary certification processes. Hell, provide an API at the OS level that they write to, the games could adhere to this as well and case closed...
Unfortunately for us all, it comes down to money and on the part of the console makers, not the manufactures. I highly doubt that a company like Logitech or Thrustmaster wants to pigeon hole their customers. Quite the opposite I'd guess. Contrary as it might seem.
The PC is the savior here...
Though even then, Microsoft is trying to be a turd about it with games like Forza Horizon 3. Unfortunate, really... I had heard they were heading in a different direction, especial on console, but it seems that didn't happen. Yet.
Edit: I would encourage you all to speak with your WORDS and not your wallet... As I stated before, our wallets likely don't wield much power given our numbers. However, they may not be truly aware of what we want... In the end, they might actually end up making more money...