If you have data demonstrating strong EV use of PHEVs (vs defaulting to ICE most of the time), provide it, but it is absurd to propose these suboptimal vehicles will be maximized for low emissions use based on human behavior.
It doesn’t matter how strong the case is for PHEVs if the data doesn’t conclusively demonstrate they’re being used appropriately to minimize emissions. That’s just hope, and hope is not a strategy. Frankly, PHEV tax credits should be something like revenue you have to recognize over time, only provided when proven they’re being used in the manner desired (versus at time of purchase, after which you might not ever even plug the vehicle in).
It doesn’t matter how strong the case is for PHEVs if the data doesn’t conclusively demonstrate they’re being used appropriately to minimize emissions. That’s just hope, and hope is not a strategy. Frankly, PHEV tax credits should be something like revenue you have to recognize over time, only provided when proven they’re being used in the manner desired (versus at time of purchase, after which you might not ever even plug the vehicle in).