I would be curious if that is how Japanese courts would view it. They may not consider that a valid way. Or they might. But different jurisdictions vary.
My problem with this type of gate keeping is that machine learning does open up translations that are accurate to the masses. It is quaint having a real human do your translations though. Kind of like having a real human drive your car or do your housework. Not everyone can afford that luxury. But, on the other hand, having a singular organization own the training data and the model and not publishing the model itself is where the gatekeeping continues.
But I'm not a lawyer so I don't know and in real business, they casually use the word "license" in Japan. But in my opinion, everything is contract under Japanese law.
Or to put another way, a license (a contract) is a tuple (terms, jurisdiction), and the juridical evaluation process will take both into account.