My fear is that they could be in endemic Japanese death spiral disease of hand-wavingly waiting for massive orders while not doing much to secure one.

There are so many cool stuffs and perfect plans from Japanese large companies and government agencies that are pushed forward up to one step before volume production or commercial rollout and then stalled until funding dries up and everyone moves on. Which, if I were to explain by speculating, might be due to people prioritizing own job security over corporate revenues, due to low psychological safety and perceived invincibility of large organizations, as one among many consequences of employment ice age phenomenon.

But whatever the mechanism is, it'll be sad if this one follows that path. Hopefully they make and ship them in substantial numbers. That should be their goal anyway.