I think the fact the OGL was designed by a business, not a nonprofit, and that this business' goals compete with your own, makes this situation radically different.

The FSF doesn't compete with your business and doesn't want a cut of your business.

Moreover, if you are going to use a license designed by a competing business for your main line of products (e.g. Pathfinder) you better make sure your competitor is not the sole arbiter of that license! A consortium of businesses would make more sense.