They give an opportunity to other teams per circuit. And for example last circuit in fall VP (at that time no. 6? in the world) would have not even be given the chance if Gambit (at that time no. 3? in the world) would have wanted the chance (because only 1 slot for cis). And all these teams that have "a chance" have only two slots to the actual event and they have two compete about those two slots with 6 partners.
I don't really care what the reasons is to keep it like this or if how much they are changing it this year. And of course I'm not also expecting any changes just because I would like it. But until I see it somewhat changed, I can't get my hype up like they would want me to. But I will still watch some games because the production is so good.