FrogReaver
The most respectful and polite poster ever
People get 1 license agreement for all OGC. No need for thousands of different agreements.That can't be the case. No single party owns all the OGC, and you certainly don't have to use all the OGC. There might exist the possibility that the Contributors are acting collectively in respect to granting you the right to Use the OGC that you're actually Using, but I'm not sure if that's the most plausible interpretation either.
1 party doesn’t have to own all since all have agreed for their OGC to be licensed under OGL.