The Speed of Touch ID
“The lockscreen is now an active space, a play space, a space to invoke cameras, respond to messages, talk to your pal Siri. It is a space in which you’re meant to linger, to fall in love, to capture. In fact, it’s no longer a lockscreen but rather a comfortable veranda between the world and your home.”
The speed with which Touch ID scans your finger on the iPhone 6s is incredibly fast. So fast, that unless you hold your phone in an obtuse way and turn on the lock screen using a non-Touch ID finger or the power button, you’ll miss the lock screen - and its functionality - entirely.
In short, when you just want to see what time it is and you hold your iPhone like a regular person, you’re out of luck.