It's a gap in the web platform that there's no solid cross-browser way to automatically adapt these sorts of control layouts to the user's actual keyboard layout. :( I type Dvorak too, and just have to switch to qwerty for certain games and things like this (both web and native).
I don't see why you'd say it's "clearly for nerds", it seems to be "clearly for Daft Punk fans" and since they're french you can use the french keyboard layout soo their french fans can play with it.