Not following? EVs are actually pretty good for braking. Reg can apply a lot of braking force without fading. Jut don't charge to 100% at the top of a hill!Try to find one in North America now (less than 5 years old).
Also, one that doesn't "require" trailer brakes over 1000 lbs.
Here was one test. IIRC they didn't even need to use the friction brakes.
Of course, towing regulations in North America are quite conservative compared to Europe.