The top of the phone’s bezel contains a camera, and the bottom doesn’t. Why do you want a larger chin with wasted space? The pixel 1’s chin always bothered me for that reason.

I kind of like the chin on the Pixel 1 because I know I have another option to grab the phone without touching the touchscreen.

Either you make a phone clearly asymmetric (eg new iPhone X) or clearly symmetric. The new Pixel tries to have a symmetric design but fails slighlty (top and bottom bezel have similar heights and form language but are still asymmetric).

They sure look symmetric in the pictures, though?

The Xiaomi mi mix did exactly that.