I would personally consider Gambit as simply the "Master's 3 winners" and not use them to justify EMEA#1 as a "second seed" and thus put them in a worse pool.
Also, I would organize the pools with how strong a team seems to be rather than the amount of slots they get. Brazil's consistently poor performance so far are enough in my opinion to justify not considering them as top teams and not put them in top pools at the same levels with Gambit, EMEA#1, NA#1, and KR#1.
Again, I disagree with a few aspects of your pool, but I see your point.