let me give you an example what it isn't fair (about tanking and asso draws)
This group, has two teams with very high q (they built their teams with asso loans).
Those teams are keeping their q with tanking.
That group might play with another which doesn't have so high quality like Yaya's team but similar avg q.
Yaya (and the other team) are loaning three 9* to the other group mates and they getting stronger too.
This group should play with another with the same roster teams and not avg of the 6 teams.
That's not fair.