Because they released the iPhone 8 just before the X could it not be possible that Apple were hedging their bets a bit?
No matter, my use case makes using FaceID a non starter (as a Motorcyclist). The TouchID on my refurb iPhone 6 works fine. I'll keep it for a few more years and see if Apple has realisted the FaceID is a failure.
I guess I fall into the 'happy with what I've got' camp.