If RedHat is right, does that mean you would not be able to install Windows 7 on a Windows 8 certified PC? I imagine that could be very annoying to corporate I

If RedHat is right, does that mean you would not be able to install Windows 7 on a Windows 8 certified PC? I imagine that could be very annoying to corporate IT departments that don't want to upgrade to Win8 (at least not right away) but still need to buy new hardware.