That's not the point. This is about people switching to Wintel from MacBook (assuming they didn't buy a MacBook pro just to install Windows). Developer that use Mac/OS X use it because it's a UNIX machine, so moving to not POSIX compliant does not make much sense.
Why would you go this route though? Unless you must do .NET professionally, there's no real reason for devs these days to use anything Windows. It just makes everything much more complicated, and many compromises because of platform readiness of many of the cutting edge projects (everything seems to start today on OSX/Linux).