It's absurd that this only works if your bank is officially on board. All this really is is a phone number/e-mail to IBAN "DNS". It shouldn't be that complicated.
If I'm gonna have to go through "do you have Wero? No? Would you consider getting it? Oh, your bank is not in on it? That sucks." every time, a normal bank transfer via IBAN is certainly quicker. Free real time transfers are mandatory now anyway.