I see your point and balance is always a concern for sure, but no game is perfectly balanced. Even the biggest esports in the world can't achieve a perfectly fair playing field, and they have the most motivation to. Instead, the balance needs to fall within an acceptable margin (which, taking off our soul crystals does not fall into). It comes down to balance vs fun. I think most everyone would prefer a game that was fun, but slightly unbalanced, than a balanced boring game. When it comes to FFXIV, the gameplay of our jobs falls into the latter.