Shall I formulate them the perfect response? "This was meant to be OGL 1.1." *draws lighter and sets it aflame* "Have OGL 1.2. It's the same as 1.0a, but for one sentence: We can't modify of revoke it. Are you happy now?"
But I expect them to add something like:
"in other news, One D&D uses this totally-different-License that's not the OGL but the DNDGL 1.0... which just happens to read like what we thought OGL 1.1 would be."