It seems to me that the actual problem that the EU is trying to solve it to find a tech managed by the ECB but that leaves space for the banks to keep existing in payment. They make a significant amount of money from Visa/Mastercard payments.
But we don't need payment terminals anymore: phones and QR-Codes are enough. We don't need Visa or Mastercard: just route payment instructions from payee's bank to payer's bank.
In Europe, we actually already have instant-payment through the SEPA network (i.e. IBAN transactions).