I kind of like the idea, but share most of the "reservations" that have been shared in this thread.
Another reservation would be that EQ and gain information like this only tells part of the story anyway - e.g. what is the character of the gain when considering the EQ curve, is the overdrive/distortion especially driven by the low frequencies, or the high frequencies? That sort of thing.
Though you could argue that "limited information is better than even more limited information" On the other hand, it might be more misleading than helping, I don't know.