It's not seamless if it includes a war, global isolation, exodus of all business and disconnection of the banks. This means they were left with no alternative, in which case, sure, it's 'seamless' to use the only alternative method.
Europe will have a lot of friction with consumer habits and Visa will always be relevant for buying things from outside EU. These are all competing entities which hate anything that makes them seamlessly lose their business.
It's not seamless if it includes a war, global isolation, exodus of all business and disconnection of the banks. This means they were left with no alternative, in which case, sure, it's 'seamless' to use the only alternative method.
Europe will have a lot of friction with consumer habits and Visa will always be relevant for buying things from outside EU. These are all competing entities which hate anything that makes them seamlessly lose their business.