This is actually a jab at Nexus 6P's "visor":

https://upload.wikimedia.org/wikipedia/en/b/b2/Front_and_bac...

Note the large black bar at the top.

It is glass and there are incidents where it cracks, causing unpleasant damage that is difficult to fix.

It's not an apple jab. I really hate when cameras stick out the back of phones. I'm actually complaining about my Galaxy S6 if that matters. Most manufacturers do it though.

My first thought was my Nexus 5X.

Fortunately, the slim case I have produces a raised lip around the camera bump, so that if I'm careful, I'm not scraping and scratching the protective glass against every surface I set the phone down on.