This is a good step. But the devil is in the details.
And I don't see the details that matter the most:
* Network effects: will it be widespread (from city buses to fruit stands)? Compared to UPI and Pix, Interact has a pathetic history of adoption. What sets RTR apart from Interact?
* Friction: Will it be instantaneous and free of charge? Can it be used by illiterate persons? QR codes? NFC tags?
In Brazil/India those payments systems are used by the most informal of agents: fortune tellers, prostitutes, merchants in crime ridden favelas, ... This is what real mass adoption looks like.