Yeah that's how it works. So let's say that there is 512 teams per division in BBM. After first round, 256 are without losses. After second round, 128, and so on. After the 7th round, only 8 teams remain with 0 losses. In B3, there was 8 undefeated teams this season and ~120 attendees.
So I just meant that anyone who thinks this competition will be easy money, are very wrong. Lower division teams from bigger countries will likely get only 1 or 2 wins per season and even the good top division teams are likely to finish maximum of 6-1.