I agree, and I would go further. The risk that governments run in using those instruments is that they're picking winners and losers, in many ways, by setting those performance standards or those technology standards. It's essentially, “You do this; you don't do this”. In some sense, it's almost taking a “government knows best” approach. Ideally you would want to let the market figure out where it's cheapest to cut those emissions. So yes, I would say in many instances—in most instances—the best bang for the buck is going to be through carbon pricing.
That is not to suggest it's appropriate in all cases, again, because there are going to be exceptions depending on the industry and depending on the nature of those emissions.