Former masters Zerg here. You are partially correct, but actual high level play involves a great deal of small variations to these cookie cutter strays, and the

Former masters Zerg here. You are partially correct, but actual high level play involves a great deal of small variations to these cookie cutter strays, and these small variations lead to a constantly evolving metagame. A good example was the kespa league during hots where innovation and strategy played a big role. It’s just that a lot of that strategy is irrelevant unless you have amazing mechanics - and the difficulty of those mechanics means that you can’t as easily think, plan, or adapt in-game (because your brain is busy) A big part of the game is thinking about “how do I win against somebody who does that...” between games