The biggest reason your patch was not accepted is because you can not
separate most of the settings from application tab. This makes it useless to put only separate tabs into
control panel applets.
You're perhaps confusing pure_evil's patch with my proposal. My proposal would only split up the tabs that are not application-specific, which are the Desktop Appearance and Sound portions. These would become accessible through standard control panels, with the rest of the tabs remaining in winecfg normally.
Regards,