Just my opinion, Murray, but despite the lack of a range measuring device, the camera still has an optical viewfinder, no ground-glass to focus on, and is therefore akin to RF cameras in viewing the world. In his Rangefinder book, Roger Hicks refers to cameras with optical viewfinders as "Direct View" cameras, and this includes those both with and without rangefinder mechanisms.
We also have the Voigtlander Bessa-L with neither rangefinder NOR viewfinder (otherwise most similar to the popular Bessa-R rangefinder body), and it's not banned from RFF because of that. 🙂 Nor, I think, would the very expensive Alpa direct view cameras...
Focusing by estimation, guess, scale (however you call it), or even direct measurement with a string or tape-measure, has a long and honorable history. Even when rangefinders were an accessory device available separately for use in the camera's accessory shoe.