I believe the issue involved hype about one type pads being used being a 'game changer'. This is not the case as you can use the qr code along with existing cr

I believe the issue involved hype about one type pads being used being a 'game changer'. This is not the case as you can use the qr code along with existing crypto primitives to do the same thing much more securely. E.g. qr code could have a public key and a nonce, send your public key and the nonce (signed by your key) and now both of you have enough information about the other to do diffie-hellmen (create ephemeral keys). In other words they are hyping and trying to sell people something that is at best equally secure to current things and more likely less secure.