I understand what you are saying, but I don't believe that is the character they created. He's more mature, but still needs to grow a reason to stay in that chair. He doesn't ever get one, just is happy he saved Yorktown, again, and so he'll stay. If you can identify a reason, outside of liking his crew and saving the universe, for why he's not on Yorktown, I'd like to hear it. He is no closer to overcoming his father's death. He is stagnant throughout these films. He has glimpses of growth but it's paper-thin. I'd like to hear why he is disillusioned and not bored.