I have just been trying to clean up the checkout flow scenarios bit by bit since these are some of the older scenarios and they are not getting updated when the semantics or preferences change and reflected in other scenarios such as associating a card in card.feature.

As for this change, afaik, we are encouraging that people associate the customer onto the card, as the clients operate by doing `card.associate_to_customer(customer) ` which is what this action now reflects.