The couple of times my card has been compromised has been overseas when I've handed the card to a waiter or at a hotel check in desk and its been out of sight for 3-4 mins. I personally don't mind the card not having a number on it and if it was an app where I could generate a 1 time use card number for online purchases, I'd be fine (although the two or three places where I shop, have my card number saved on their systems).First it's not as convenient as just pulling it out of my wallet, but also doesn't sound super safe to me.
I do believe that is part of the capabilities of the Apple Card ( not 100 percent sure)
you don’t get a one time card number but if there is a compromise - then you can instantly get a new card number - you switch in the app. So then the lack of a card number being printed on the card means no need for a new physical card.