There should be a law requiring chargers to fallback to "free for all" when they have a data connectivity problem. Or implement some kind of offline payment pro

There should be a law requiring chargers to fallback to "free for all" when they have a data connectivity problem. Or implement some kind of offline payment protocol. Heck, your car or mobile phone could handle the payment and present a code to the charger. The charger doesn't need to be online at all, it just needs to prevent replays by remembering the last used code. It's quite simple to imagine a better state of things for EV chargers. It's however impossible to convince all companies to adopt the same protocols, unless you have a quasi-monopoly (e.g. Tesla) or the government steps in.