It pisses you off because five people are in the party? That seems... well, really dumb. Sorry. Is it too strenuous to select a command for one more person? Not to mention that you rarely have all five slots filled until the end of the game.

Either play it or dont. I think it's one of the best RPGs ever, and it has a wonderful story. Golbez is a great villian. But if you dont like it, dont play it.