The ‘substantially heavier’ is doing a lot of work there, given the change is only about 5 to 10% on average and typically EV’s are still not the heaviest vehicles in their same class. Compared to the car obesity epidemic in North America, the drivetrain is irrelevant. A European EV for instance is nearly always going to far, far lighter than a modern US gas car.
Also, becuse if the road degradation is exponentially tied to tire wheight it is almost always a function of trucks, busses, and freeze thaw cycles, cars tend to be to light to cause significant share of the damage.
Break dust is an odd thing to bring up, seeing as one of the other common gripes with EVs is that they use their breaks so extremely rarely that they corrode and might be ineffective in an emergency.
Tire dust is an factor, but again one that’s more impacted by the increase in North America’s car size than drivetrain and which is reduced by getting cars back to sane sizes and out of dense areas like cities, not pretending that a 80 to 90% reduction in one of the largest causes of climate change is somehow the same.