When a restaurant pushes me to a QR code I now outright say that I find them "insulting." Granted, where I live e-menus generally haven't taken off in sit-down restaurants, so it's very easy to push back on nonsense like this.
What's more nonsense is the author of the article trying to split a check 6 ways and stressing over the fact two people shared a dessert. Sack up, split it roughly or better yet don't split it at all. Good friends return the favor sooner or later. Unless you're a cheapskate.