It's because that's how he wants to draw his manga, and tell his story. That's how artists operate, and they can't help it. If he envisions something and he wants it in there, he's going to draw it. Just like it's your right to flood the forum with 1000's of powerlevel threads, because you have these thoughts in your head, that you want to express. So how about you tone the entitlement down a notch?
But I will not act sorry for a billionaire that put himself in a situation on his own volition.
What an embarrassment to ask us to “understand Oda.”