From a fellow know-nothing when it comes to "flatness" and skeu-something I was a little bit surprised when the author complained that the old "receive a call" interface was full with alert-like buttons. They are supposed to be "Alert" buttons, for crying out loud, as in you're asleep in your bed, the phone starts ringing which means you have been "alerted", you're now woken up and ready to answer the call or deny it.

Which brings me to my second point, that is where is the "Deny" button/action in the new interface. ? I could only see "Answer" and "Remind me later".