rcade
Hero
Hasbro might, but it would be arguing "nobody can copy our license" at the same time it argues "everybody must copy our license."The OGL is supposed to be listed in your section 15 declaration, so wouldn’t that give Hasbro standing in this situation?
If a court had to rule on this, it might use the Reformation clause as justification to allow "You MUST include a copy of this License with every copy of the Open Game Content You Distribute" to be changed to "You MUST include a declaration that you are following Open Game License 1.0a with every copy of the Open Game Content You Distribute." Or it could tell Hasbro that because it offered this open license for 23 years and many works continue to be legally publishable under its terms, Hasbro must allow its text to be included in licensed works.