About time they got rid of these silly signatures, IMO. As others said, I just put a squiggle in the box and carry on.
OTOH, I once had a young waiter chase me out of a restaurant because I signed the "customer copy" and kept the "merchant copy." Inexperience, probably, but funny!
I just wish Apple Pay would become more usual in my area. On Amtrak earlier this week, I used it on the outbound train's cafe car, but on the return trip the bartender refused to take it, saying it "doesn't work." They then admitted they didn't know, but as the line behind me was growing I just used plastic. I'm told the trick is to tell them you'll be using a card, and at the last minute to put the phone up to the NFC reader (if there is one). Lack of training, surely.