Ranking Champs teams by avg. opponent seeding

I was bored and here is a ranking of teams based on the seeding of their opponents. Note that some teams may have a lower or higher rating due to playing just two games for which reason, I have placed the number of games they played on the head of the team's name.

1. Trace⁴ G2⁴ Talon² (1.5)
2. Sentinels⁷ (1.57)
3. Heretics⁸ (1.62)
4. FUT² (2.0)
5. KRU³ PRX³ (2.33)
6. BLG² (2.5)
7. Leviatan⁷ (2.57)
8. Vitality³ (2.6)
9. EDG⁷ (2.83)
10. DRX⁵ (3.0)
11. Fnatic⁶ (3.16)
12. FPX² (3.5)
13. GenG³ (3.66)

Trace and G2 were my two finalists going in so thank you for making me feel better about myself

why is fpx 3.5? heretics was 2 and sen was 4. so wouldnt it be 3?