There are no reports about dropping down, and Green never suggested that in his comments. What you read was
That was Lee's and others suggestions over the years. It would be a huge move, as you suggest, but if it does happen, there will be a LOT of conversation about it beforehand. LeeAdams has made thoughtful discussion points on this in the past. And as he says in his post No more MAC and a coaches exodus. Even though MSOC and even WS&D would probably be able to continue their excellence, the others would become at best competitors in their new lower level leagues. Heck, you're about to watch two nationally ranked teams (mens and womens track and field) begin their slouch to mediocrity here at The U, why not bring down the others.....