Now wait a minute, does a Gorn puppet master really make so little sense?
I find myself intrigued at the scope of the prospect, at least, it could be interesting. He (Del Toro) could become a major ongoing antagonist seeking to control countless species with a goal of an Ultimate war in the Quadrant, something TOS often hinted at but could never commit fully to doing. The best explanation or 'conclusion' we eventually got to those hints was the Carol Marcus statement: "The Federation has kept the peace for a hundred years". He could have been what they had kept the peace against.
*shrugs* Just thinking out loud...
I would be completely happy with him being a Gorn. I don't know if Del Toro would be happy buried underneath all that makeup.