That was my point - to show there's no correlation for the speakers to sales and to show how unimportant they are in the market, yet people keep going on and on about front facing speakers, as if they're some incredibly important feature - they're really not.
I believe the best overall position for a fingerprint scanner would be on the front below the screen. That is the most convenient for people to use to wakeup/unlock their phone from resting position. I haven't seen a phone with a FPS on the front and dual front facing speakers. I don't think the FPS is misplaced, I think at the front is where it is best placed. I currently own a Nexus 6P and while it has an excellent FPS, it's in a position which I have grown to become tired of, to the point where I just use my swipe pattern. Sure not everyone would agree with me and some may still prefer the FPS on the back, and that's fine.
Second, if the FPS is going to be on the front, it makes sense to pair it with the home button as well, otherwise you run into that awkward situation with the A9 where it has a FPS on the front (which doubles as a home button) but then a software home button directly above that. While I like software on-screen buttons, I don't think they're the best solution. I recently moved my mum to a Nexus device, she's constantly lost when the nav buttons disappears and she never knows when they'll appear or when they'll disappear, or how to bring them back. For us who are into phones and know the ins and outs of them - it makes sense to use, but for people who aren't into tech and just want to use a phone, I don't think disappearing nav buttons are a good thing and having to explain to someone how to get to the home screen is not intuitive design. I have a Pixel C and iPad, and honestly, having a dedicated home button that is always there and doesn't vanish is handy to have. Sure a physical home button goes against Google's direction, but I think Google needs a redirection of Android.
But at the end of the day these are just opinions. I may find A, B and C things annoying others may find them great choices. Every company has to weigh up what's useful, what's not so useful and what will provide the most benefits for most users. Unfortunately, it seems that front facing speakers have fallen to the wayside.