Do you really see someone giving-up its advantage (due to the competitiveness problem of this game) for joining this league?
As you probably saw, they do not even admit that there is one although the proven examples that are non-mistakable I've presented.
The fact that you repeat yourself constantly with the same claims does not make them any more true than when you said them the first time. Repetition is not proof, it makes the point more memorable, but not proven.
I think this whole idea could make problems worse not better. If you allow some teams from micronations to move across it will just make things worse for those that remain. The top teams in the big nations will probably not want to move either. They will not want to give up their advantages (if they have them), their history, their rivalries, their NT involvements etc. Sure some will go but overall I think this is a bad idea.
What is a good idea and many people have suggested this for a long time is start up a second world from scratch. Let people have a team in the second one. Think carefully about which nations to create. Start everyone on an equal footing in the lowest level of their nations so they can get promoted on merit. So many games have different worlds/servers why not BB? Some have suggested this be a supporter only world, I don't agree because I think it may make the playerbase too small but it is worthy of discussion. When new teams sign up they will have a choice of joining world Kobe (old) or World Lebron (new).