You can sort of wing it with EVgo https://www.evgo.com/charging-locations/ and ChargePoint https://na.chargepoint.com/charge_point but I agree it's not as stress-free as Tesla Superchargers.
But I think the larger point is still valid: the charging infrastructure is still not nearly as widespread as gas stations and charging still takes longer than re-fueling. For us, the compromise of a range extender is still the best of both worlds. We can run electric most of the time, but we can still use the Volt as a "regular car" for road trips.