That's not what happened. They already had been working on MIR for a while. Then Visa/Mastercard pulled out due to sanctions over the war. The retailers actually prefer MIR now as it's newer/better tech plus lower fees and government likes it because they can track every little detail (when they were a bit in the dark before). Consumers seem to prefer the payment systems - faster transfers, QR code payments and scan face to pay terminals.

https://en.wikipedia.org/wiki/Mir_(payment_system)