Yeah there’s definitely potential hidden savings in switching to the EV rate if you can also switch some other usage to off-peak. It's especially advantageous for people, like us, who already have most of their energy usage during off hours or weekends, but have been too lazy to look into changing to a time-of-use plan.
Our costs are 25% of gas (compared to a 27 mpg/91 octane car, as I mentioned in another thread) but if we instead calculate using how much our electric bill has actually changed after switching to the EV rate and doing laundry/dishwasher off-peak, it’s more like ~10% of gas.