This is sort of a confused article.
It sounds like it's referring to Same Day ACH, but it starts out by mentioning non relevant things (unless the consumer in question is paying with ACH at a grocery store ...).
Same Day ACH is exciting, but well over a year off. Also, it comes with a limit of $25,000 per transaction, which makes it useless for certain types of transactions, and it also has an added fee of about $0.08 per transaction. For something like payroll or bill payment, this really adds up, and I'm guessing it will see less use because of the fee.