For example, i play Zeus a lot, every 1 lvl of Heavenlu jump reduces cooldown by 4 seconds, Zeus has 4 seconds cooldown reduction lvl10 talent, right now #1 spectated game has Zeus who took that talent at lvl10 or 11 and he has lvl1 Heavenly jump, why would he do that?
They are not high rank because they know every skill build, picking a talent over a skill is not the reason you win or lose.