How can you say he had no development? At the start of the game he was a naiive squire, oblivious to the true nature of the world. After witnessing his best friend's sister being killed at his own brother's orders, his view of the world changes and he finds himself lost. This leads him to become a mercenary for hire, but after meeting with Delita he realizes that it's his duty to use the fortunate upbringing he received to right the injustice he sees. It is true that his character doesn't develop all that more after that point (which is still early in the game), but to me that is development.

Yet I would still agree that Delita is the far more developed character in this game, and probably more interesting too. It would have been cool if we got a parallel story where Delita is the lead but I doubt we'll ever see that.