Competent (non-software) professionals would read the initiation as the intent, also see comment 4 there, suggesting the mindset of the regulator. As a reminder, regulations are always subject to the interpereation of the regulator, which, as history shows in the case of regulation E, tends to side with the consumers.
There's a deeper story here though:
* Banks are given a monopoly to almost literally print money. We ceded control of a very important facet of daily lives to them.
* The cost for that is tight regulation, meant to make sure they keep the trust invested in them.
* In the case of Zelle, and some other new products, banks, rushing to market, try to ignore their side of the deal.
* Suggesting we should give up and accept that is morally, regulatory, and legally wrong.
* Regulators and policy makers seem to agree with the above.