can someone explain group alpha in CN

Why are tyloo are not first seed, they have more rounds wins and equivalent map differentials with the other 3-2 teams.

Head-to-Head is the first tie-breaker

Let me elaborate a bit, there's a 3 way tie between TYL, AG and JDG. The first tiebreaker is head to head match-ups but there's the issue of TYL > AG, AG > JDG and JDG > TYL so what happens is they look at the head to head map differential for each. The map records each team have vs the other 2 are as followed: AG (3-2), JDG (2-2), TYL (2-3). So AG are 1st seed, JDG 2nd seed and TYL 3rd seed.