As discussed in #6110 we should make sure the cards are using the check/radio components properly. Currently they present as standalone (only the input is visible) but rely on the <label> for styling and in some cases a clickable interaction. Using a standalone modifier with a <label> as a child causes layout issues since the standalone variation is for just an input only. Let's see what kind of improvements we can make there. One thought is to use the standalone variation with the <label> as the parent/outer component class element.
And the card-check.hbs and card--radio.hbs files could be updated to use the newer check/radio hbs syntax.