Because I don't have to do everything for you. And I will never have that kind of minute distribution. It would be even hard to imagine why would you need a minute distribution like that. Even if you have an injury and you play 120 - 0, then next week you would need 120 again to keep the game shape normal. Better to take the temporary fall and even out youre minutes.
with zero minutes after 130 you could manage it even to drop with gs 6, never seen that with "normal" minutes at least not with good one like the 65. Dropping from 8 to 6 with average 90(132 +48) minutes also isn't that common, even if it possibble.
I stay with my point that the last weeks minutes, only have the impact through the starting gs at the calculation.