Interesting that the limit is different for electric vehicles. I guess they tend to be heavier so it's sort of unavoidable, but it does potentially set up an imbalance that will need to be corrected at some point in the future. Of course, for now it's more important to convert as many vehicles to EVs as possible.
Not knowing how they get taxes for their roadways there, but in many places it's from fuel taxes which obviously EVs don't pay, and they're heavier too so even harder on the roads so the tax structure will need some rethinking whenever that tipping point is reached. Hopefully it's done in a way that doesn't eliminate the cost benefits of running an EV.