Why is ZvP so complicated on the Zerg side?

[Hallo-2564]

@Adventurer-16000863

In my vision of the game, each race would have valid 1 base styles, 2 base styles, 3 base styles, etc, and would have a 50% win-rate at each stage vs an equally skilled opponent. This would create maximum diversity in the game outcome and would be very entertaining to play and to watch.

would be nice and it used to be.
But zerg was first nerfed in early-mid because of his ultra late game and in the end they removed ultra late game.

and what is the consequence T/P have many options all-in/ timing push/ turtle. and zerg is limited to mind games.