I saw that done with the Oppo Find, not the Lumia. If you have used it, would you be confident enough to not wrap it in a case? That's the ultimate litmus test for phone durability.
I would tend to disagree about the lack of technical and software innovation. Xiaomi's MIUI and Meizu's Flyme are anything but stock and give some neat functionality to Android that I wish others would use (I'm better versed in Flyme, which has SPDIF audio and the best web browser I've used on an Android device). Meizu has been great about OTA system updates; I can't speak for the others.