I think the point was to sign for the minimum ( 4 or 5) and if you get tagged up such as the case with my fighter you can stay in that org or go back down to the orginal org in which you started.
My question was if your fighter starts out slow and your forced to sign with the bottom 3 orgs are you DQ'd or is that just an even bigger mountain you got to climb?
To be honest, I never thought about this. If it's impossible for the participant to sign w/ AoC or WCA then I don't see any reason they should be punished for being in FG or the other smallest orgs.