True but also most places in the EU accept IBAN which is free (for individuals at least) and now relatively fast (seconds for the same bank, minutes or hours at most otherwise) so payment can still be done without MasterCard/Visa. It's inconvenient for a croissant but for anything slightly more expensive and that you don't need within seconds it's not too bad.

Most banks in Belgium (e.g. Bancontact, Wero, Pom) or Sweden (Swish, was renting ice skates with it just this winter) have their own system but typically only nationals use that. It's still enough for shops to get instant payments without those US cards issuers.

TL;DR: yes and it's wrong, but also IBAN works.