Wait you actually want those buttons there?
Faceless is a shameless Samsung defender, pay him no heed.
Soft buttons are the future for a reason. They can adapt contextually to what's on screen: they go away during full screen photos and videos, the back button becomes a down caret when the keyboard is active, the legacy menu button can appear when necessary, and in the future, they can completely update it without worrying about hardware. Maybe in KLP the Home button doesn't make as much sense as a Google Now button. Probably a bad example, but Google are free to make as many advancements with Android navigation as they want without being anchored to hardware.
Well, ideally. Unfortunately they have to contend with idiot manufacturers who decide to do their own thing, thinking they know better than the company fucking making the operating system! What a bunch of chavs.
As for the "it takes up screen space!" argument, it's really a non-argument. It depends on if you like more bezel or more content in certain circumstances. Aside from that, Google could easily add swipe gesture for showing and hiding the navbar (anyone with a Chromebook Pixel knows what I'm talking about.)
IMO no... HTC One is just the better buy and device....
Except it has worse battery, non-stock Android, hundreds fewer customization options, and a weaker GPU. Sure.