A wire which is supposed to carry 9.5A max carrying >20A is bad.

With the way the Founder Edition uses the connector – all the 12V pins are just connected together on the card – isn’t it better to do the same on the cable, in other words connect all 12V wires together at the connector on both ends? Would that eliminate imbalance between the cables?

Need to input an additional passcode which is unnecessary when using a cash card, and still need to input the PIN. It is remembering 1 more thing in exchange of carrying the card.

Not as insecure as I first thought as just scanning your face and getting authenticated, nor as convenient as that would be.

I don’t see it getting so popular that it replaces cash cards. There is not a huge advantage to the user so banks probably cannot convince that many people to give up their biometric data for this service.