To my understanding EREV, like the i3 pictured in models with the optional ICE, is mostly driven on battery power with the generator as a backup. It doesn't even provide full power when running on the generator whilst the battery is low. I don't know of examples of EREV without a battery or with a tiny battery which would be classified as EREV but would like to see examples. I know of some studies showing lowered fuel consumption but nothing for consumers.
I would understand your frustration towards EREV in the cases where it's mainly burning fuel as that's indeed not BEV at all.
Can you share some examples?