Who remembers the original Xbox had plans to be Dreamcast backwards compatible? The Duke controller is basically the evolution of the Dreamcast controller - and Microsoft poached Sega hardware talent in the initial days of development
Microsoft going the way of Sega, ditch the console market...
If you have been waiting for months, maybe consider mowing a lawn or providing some other service for $10 (or even slowly collect change) and you can try it
If you collect enough aluminum cans, 200, you can redeem them at a scrap metal place for $10
They literally work for free, if $10 is too much just wait a bit longer
They don't owe anyone anything
If you think what they do should never receive any sort of compensation you can start your own reimplementation
$10 optional to use something slightly early from a team that otherwise works completely for free for all of our benefit
Seems fair, $10 is a very low fee