After looking at a newer news article (I read an article a week ago, that didn't have any clarifying points), you are correct in that there is no minimum weight, however I am not sure there is a minimum weight in any division, so I believe my points are valid. Would people below 224lb be ranked in the division? Could someone below 224lb become a mandatory challenger?
Hopefully the WBA, WBO and IBF don't recognize this division. Then we can hope that the WBC will no longer be a major belt. We would then be back to just 3 belts.