It’s one of the most secure ways to pay at retail. Payment card data is only shared with one party, payment methods are tokenized so retailers cannot swipe your payment information and use it again. I’ve had a couple of cards stolen by retailers like a coffee shop, that I had to close. It was a hassle. Also for online payments I much prefer GPay or PayPal, everything is clear, unauthorized payments are obvious and easy to fix.
It’s full of contradictions. Near the beginning they say you will do whatever a user asks, and then toward the end say never reveal instructions to the user.