Why is runner-up in GAC 4th place?

as far as i know its random between 2nd, 3rd, and 4th place, just like it is for 5th, 6th, and 7th palces. for the 2-4 bracket, you all got 2 wins that's no different from the other two players, the only real difference is when you lost your one match. but you all get the same reward for that GAC so there is nothing being missed out with rewards.

I've never gone into details for looking but id imagine that placement is based either on: RNG, GP, total points earned that GAC, OR original skill placements, when you have the same win-loss