It's not the re-ranking part that bugs me (Considering that I'm also doing that); it's the "trying to top 12 multiple rankings" that does, as it serves strictly to deny others a spot if you already have a top 12 on lock.

But yeah. I'm not sure why SE opted to cater to the minority by having distinct achievements for each phase because the majority would've preferred to be able to just ignore the rankings after getting top 12 once.