Expecting all network operators to do that is not feasible or reliable. Tesla controls the car, protocol, charger, and payment processing. Everyone else outside the walled garden is openly handling a much bigger market with many more variables in more countries. Forcing customers to use an app for each brand of charger is also an accessibility nightmare. Fear mongering about skimmers is a dumb reason to remove traditional payment methods.
This is all before we get to the lack of screen or keypad means fuck all to security (it's also an accessibility issue to remove them). If I can break into a Tesla charger wirelessly and fuck with your car, I'm going to do it, walled garden or not. Just look at the state of IoT.
EDIT: This comment aged well https://thedriven.io/2023/07/18/tesla-supercharger-spotted-with-credit-card-reader/
CCS is is only supported through a PLC translation chip on the vehicle side or a rare Magic Dock adaptor, and only when one side is non-Tesla. Outside of that, CCS is not a factor and the proprietary 11bit CAN bus protocol is used natively. Hence, Tesla controls every side of the equation on their protocol and payment processing without having to communicate with 3rd parties.
ABB chargers in India
This isn't new or innovative. OTA updates for cars have been around years before EVs. But usually those don't stop the car from starting then still be towed to said dealer because the update wasn't properly tested or have fallbacks in case of failure.
Point is, shit is going to happen across the board for everyone and Tesla is NOT some golden child. It'll just be another Apple case where dumb security claims get touted until hackers bring them down a peg or two.