Fact of the matter is that a casual league covers all the points you make about division 3. In fact, it will be even more fun for casual teams. How fun will it be for newcomers to battle expierenced teams who have started over in division 3? If I understod you correctly, you also wanna get rid of the exceptional status-thingy since it destroys the idea of fair play (I agree with you). That means you wanna introduce new teams by letting them play against for example Unknown. Even teams like CoG or other teams on that level will not be a pleasent expierence for newcomers. Already established teams will always be in the top of division 3, and top division 3 teams will most likely always beat the bottom division 2 team.
It's better for them to join a casual league and play lots of EASHL and then join div 2 when they feel ready. Division 3 will give them nothing.
Btw, stop accusing "none playoff"-teams of pushing their own agenda. You were not happy about Billys point of only div 1 guys expressing their opinion, so don't send back the exact same message.
I hope the staff test out the 2 division system. If the community grows and the quality gaps gets wider and more clear, then we can give 3 divisions a shot. As it is now 3 equally large divisions, don't reflect the community. It divides and punish to many teams.