Wero is not "something the banks don't control". It's a SEPA-based standard, implemented by the participating banks. It originated with Dutch/Belgian technology and banking markets and Germany and France joined because their sorry asses didn't have anything better so it's a pure upgrade for them.
EuroPA is trying to work with fragmented markets, Wero is trying to establish a new standard. I fail to see EuroPA as anything other than a stepping stone to an eventually unified standard. Having a single currency but noeasy and practical way of spending it in a Austrian or Spanish online shop without going through American banks is an absolutely bonkers situation.