What is the benefit? What improvement does it offer? What is the point of introducing a weakness and simultaneous single point failure in exchange for a phone with a smaller, less durable screen, has a fatter form factor, and makes it more difficult to use to do all the things I actually use my phone for?
Flip phones existed as a way to easily answer and end calls. They went away when touch screens became a more convenient and versatile means of using a device. Nobody talks on the phone anymore. I don’t even have my phone app on my home screen.