You would be discarding a decent number of customers who have older machines that are being told the newer OS versions are not compatible with their hardware. I get an earful over the lack of Vista and XP support every so often too, but we have to draw a line somewhere.
We get a huge volume of emails asking, “when will the cameras be here”, and “when will I receive my new key?” when we have very large, bright red text on our website explaining both of these things on the relevant pages. I can state with certainty that a lot of people don’t read anything. 
You’ve said you have a Ruida - why not just get the $30 Ethernet adapter and run a network cable to the machine? Then there is no driver issue.