I believe sevs had an advantage with his deck
I disagree. Just due to the nature of the deck it felt during the match like I was getting beat by vault vomit. I was hugely annoyed, so after the match I tested the deck matchup a bunch in trainer.
I think I was a favorite, but it's not nearly as bad as my inital assessment. The UW deck plays a lot better than it looks on paper imo. Plus it was helped by 2nd turn PC both matches to take my upped arsenic, early fog both matches, and way too much friggin quanta for me the 2nd match (I think I counted 11 pillars/pends in first 15 cards).
No excuses, though. Props to UW for building it and to sevs for playing it so well.