FWIW, I am also a lawyer and the exact same issues were in mind. The HQ Gateway license is designed so that folk who want to publish stuff using the HQ rules can - without doing much more than letting us know what they want to do and then giving us a few copies of the final product. That's about all there is to it.
Naturally the contract is designed to be flexible enough as to protect Moon Design from a wide variety of potential problems, but for the publisher who wants to do their own books using the HQ rules and doesn't want to hassle with Moon Design, it is pretty ideal. If you proposed to do a big print run and big marketing push and wanted some additional security because of the scale of your investment, of course we'd be open to changing certain provisions - but then again, you are already not the "no-hassle" publisher.
Jeff