The problem is really that this wasn't how it worked initially. To make a meaningful dent on cheating controllers it won't be possible for most controllers to b

The problem is really that this wasn't how it worked initially. To make a meaningful dent on cheating controllers it won't be possible for most controllers to be updated to be compliant as they don't have the hardware required to implement the correct protocols, and any simple software workarounds for specific controllers to continue working will just be exploited by those designing cheating controllers. If M$ had done this initially then the "madcatz controllers" of this generation would probably have been compliant already, and maybe would cost a few cents more to manufacture as a result. I'm on your side, cheating is a huge issue for multiplayer games today and something needs to be done about it, but it sucks that it might cause some less fortunate people to be caught in the crossfire.