Talon have played Secret 4 times this season in Bo3 matches. Talon has won 3 out of 4 of those Bo3 matches. Talon therefore has the H2H over secret. Simple.
PRX is already qualified from points ,rest 3 geng , drx and talon are top 4 , so even if talon looses now , they will qualify as each region has 4 slots for champions