Alabama does the same. Seems fair to me.
This article's proposal for the state of WY might fly better with local voters. Putting the tax on Level 3 chargers = putting the tax on out of towners driving through the state (for the most part). Just about everybody in every state whishes they could put more taxes on the visitors than on the local residents.
4 cents per kWh is one cent per mile in a model 3 sized EV. I am getting 180 to 220 wh per mile at 75mph and the A.C. Ripping that’s equal to gas tax at 20 cents per gallon at 20mpg so it’s still higher than the fleet avg mpg tax rate at 25mpg and with a hybrid like a full sized Camry getting 50+ mpg hwy half as much for the hybrid. Still most people only supercharger on road trips so it’s a tiny fraction of the opex per year in a EV that home charges. This is why Texas went to a flat yearly tax to tax the home chargers which in Texas is at a higher rate than the avg ICE driver is paying at that.