Thanks for playing :)
I’m a bit surprised by the question to be honest. This is about always taking into account the other side, it’s a balancing act between left and right, a lot of games in this jame did things in a similar fashion (using left/right, up/top, dimension-swapping which in a way is just a third axis). It only applies it to a more puzzley/cardgamey/stategey setup instead of platforming for instance.
It’s also a pretty big plot point.