There are similar payment options across the EU. There is Bizum in Spain which works in similar way (and also offers phone-to-phone transfers).
There is EMP association (https://en.wikipedia.org/wiki/European_Mobile_Payment_System...) which both BLIK and Bizum and bunch of others (I'd say majority of Europe) are members of that are already working on integration and Spain and Italy already work.
Basically with Wero on decathlon.de the DACH is discoveryng local-digital-payments and are excited about something that the rest of Europe enjoyed for a long while ;)