Any reason why Faithlife can't or won't? With PayPal, you don't have to use credit card and therefore avoid the hassle of card expiration or issuance of new card when you have Pre-Pubs on existing card.
With Apple Pay, when your card changes, some (maybe all?) banks that support Apple Pay will update the account for you and you can use the new card with Apple Pay immediately without the physical card still on its way via snail mail. More secure and convenient.
David