Perhaps if any adjustment is to be made, maybe it could go into the next stages' development instead, e.g., somehow make the enemies difficult for Stan's natural attributes but easier on Apolonia's.
The first stage you'll be able to play after completing Glades with Apolonia and Stan, is... Apolonia and Stan working as a team, fighting in the same battles. So they'll be naturally balancing each other out.
I'm happy you enjoyed the game! I hope you'll come back as more content gets added.