wasn't this the case with OpenAI five also? a bunch of non-obvious meta changes from those matches are now commonly played. The problem is when you get skill gaps that are large enough coevolution is no longer possible.
skill in any of these are obviously not uniaxial. It’s just once a large enough skill gap occurs, you no longer can “speak the language” of the game enough to take any meaning from it. The meta is so meaningfully shifted that not a lot translates.