Gog should add a controller configuration management utility, to enable users to create and share mappings for their favorite controllers.

Inconsistent support for XBOX 360 Controller seems like it would be a solvable problem in the age of Game Installer/Management Utilities such as Gog

While not a GOG feature, you might find Xpadder a useful thing to have. You can use it to map keyboard key bindings to your controller. It has sharable layouts and is ideal for older games, like the ones here that have no (or very poor) controller support.

I don't think this would work. Most of us are old farts, using controllers only close to an end, when can't even seat behind the desk anymore..