[fizzleboink]

This seems incredibly weak to me. Maybe if you had some read on him as a super good player.

If he's an idiot he might have thought: "Hey I just paired my ace, maybe he has a pocket pair, I'll raise!".

I think the reverse implied odds of hitting the wrong two pair on the river probably cancel with the implied odds of hitting the right two pair on the river. Unless he always checks or folds the river when he gets counterfitted.