Since Linux users make up 1% of the market share (I'm not sure the % for gamers, but could be lower), I'll doubt they'll lose sleep over it.
I'm using Windows and Crimson seems fine and dandy. Oh, Windows is crap you say? Well, too bad. Guess you'll just have to live with your poor steam selection and spotty driver support. Fortunately I hear nVidia has been treating Linux users just fine.
But let's be clear they're not dropping the ball because you're not entitled to super duper spectacular driver support when you choose an operating system that hardly anyone outside of your profession uses.