If you read carefully they clearly are not disrupting anyone’s gig. This is America man, the a public instruction isn’t going to step in and eat their business alive especially not something as big as payment processing. This is Zelle 2.0, ACH 2.0, etc. It won’t ever be for payments.
Given the numbers they quote re: cashless payment, it doesn’t matter if retailers don’t like the credit card processors. Consumers do - and with all the points and rewards and convenience of cashless payment, they will demand they at least support such payments and most people will use them even with passing on the fees. It’s hard for me to see a world where that changes any time soon.