> What EREV does is allow someone that hates EVs to feel like they're not another EV driver with low range problems

It allows them not only to "feel" but also to actually avoid low range problems.

> they're very likely going to be filling-up their EREV tank once or twice in 12 months.

That depends on location and availability of charging stations in the area. In many places it will take many years to get to adequate charging infrastructure and hauling around a backup charger helps in the interim. Regardless, getting stuck on the road twice a year is still two too many.

Low range problems are a direct function of the driver's ability to plan. No different than forgetting to fill-up the fuel tank. I will bet money there will still be people making excuses about lack of charging after EREVs are on the road.