Hate to break it to you but there’s a thousand court cases a day precisely because “specific legal definition” is a surprisingly flexible concept depending on context. Likewise when new technologies emerge it often requires reappraisal and interpretation of existing laws, even if that reappraisal is simply extending the old law to the new context.
This isn't a problem with interpretation, as I would guess those are. This is a term that clearly describes requirements for a category, with the these models licenses purposefully and directly excluding themselves from that category.
