isn't that what the point and big pro for NACS is?
Nope. NACS just combines Tesla's connector with CCS communication protocol (in order to make them compatible via a physical adapter).
But ... Just because a Tesla supercharger recognises a Tesla vehicle when it's plugged in and recognises the VIN and correllates that VIN to a payment account set up at a Tesla server ... doesn't mean it's going to work when a vehicle with a mystery (to Tesla) VIN plugs in.
Tesla owners haven't seen these issues when charging at Tesla superchargers because Tesla is end-to-end responsible for the whole thing. As soon as you start mixing and matching charging station manufacturers, and vehicle manufacturers, and charging network operators, and payment methods, and everyone has to be capable of talking to everyone else, this all gets a LOT more complicated.
Tesla has built a small number of supercharger stations with the "magic dock" to allow non-Tesla vehicles to charge, but you still have to muck around with phone apps because Tesla superchargers don't have any other way of having someone pay for the charge. It's no better than charging the same non-Tesla vehicle at some other charging station. And apparently the superchargers don't work very well with vehicles that have 800v architecture (Hyundai).
And I've seen it the other way around, too. I got back to my car which was successfully completing a charge at an Ivycharge station (CCS) and found a Tesla owner beside me who couldn't get it to work. The difference was that I had the Ivycharge RFID tag and he didn't. BUT ... This approach doesn't work universally unless everyone agrees to use the same RFID tags and deal with cross-network payment ... because if every charging network has their own RFID tags and their own payment accounts then you need thirty different accounts and thirty different RFID tags, and that is no bueno.
There needs to be a universal cross-recognised method of paying for a charge. AND WE HAVE ONE. *cough* Credit cards!
Drive up to the charging station. Doesn't matter which car and doesn't matter which charging station. Plug in. Tap the credit card if your car doesn't have Tesla-style plug-and-charge (otherwise you can simply skip this step). It starts charging. DONE. That's the way it should work. It works like that at petrol stations, why shouldn't it work like that at charging stations?