I do get the impression UAF is targeted mostly as a biometric authentication system — which I indeed dislike, so I do see your point. Perhaps the confusion stems from the UAF/U2F split and the examples shown.
It is true that Fido itself always uses biometric as an example. The casual finger print sensors on all phones and laptops will probebly be the most widly deployed authenticator.
Biometric authentication companies are part of the support base for the Fido Alliance and they always push Biometric into the front as well. There seems to be no company that is about to release a pin or password hardware authenticator that could advocate for the alternative.
Also the press loves the hole 'remove passwords' storyline.
Only for Fido UAF though. Fido U2F also attains the goal of reducing the knowledge factor to a PIN or something similar, but does this by employing discrete hardware tokens as the possession factor.
I do get the impression UAF is targeted mostly as a biometric authentication system — which I indeed dislike, so I do see your point. Perhaps the confusion stems from the UAF/U2F split and the examples shown.