Really enjoying the constructive nature of the posts in recent days. Good conversations - keep it up!
While I completely understand this suggestion and have thought about it myself, I do think it creates some issues where moving between divisions could be problematic for teams and players. Of course, moving up to a higher level might make you need to study your game and make changes, but if the rules of the games are too different, maybe your playing style from a lower division doesn't apply at all, because you lose or gain some aspects of the game that weren't there before your promotion. This especially applies to the promotion/relegation battle between Pro and Elite.
For this reason, it is much easier to apply the same principles as widely as possible between divisions. That being said, if this was an approach that a clear majority agrees to and wants, of course, it can be discussed. I just don't think it's the right approach for the above-mentioned reasons.