Electrical transmission lines lose power, too. So does generating the electricity. So does the electric motors. So does the heavier weight of the EV. Regenerative braking doesn't apply when cruising on the highway.

And so on.

P.S. Since I drive a stick, I coast a lot. I live in a hilly area, and have a pretty good feel for just how and where I can shift into neutral and coast. I also coast towards a red light with the goal of reaching the intersection just when it turns green. (Moving forward from a dead stop uses lots of energy.)