I would blame the developper who built the payment system — although, I’m sure if they don’t include that, they loose the sale of their solutions to restaurants.
I’m surprised that Apple didn‘t mandate the hashed email solution that they advertised when introducing Apple Pay. That felt an effective solution to your concern. It’s likely that the developper had to include that copy (honestly, that cantor is almost fresh these days) but forgot to mention that this could be hashed if you chose to do so in your Apple Pay settings.
I’m surprised that Apple didn‘t mandate the hashed email solution that they advertised when introducing Apple Pay. That felt an effective solution to your concern. It’s likely that the developper had to include that copy (honestly, that cantor is almost fresh these days) but forgot to mention that this could be hashed if you chose to do so in your Apple Pay settings.