I don't know why forum has ate my post when i was trying to send it but oh well i am too lazy to rewrite it all over again.
The game is telling the story of Lee Everett and it's not actually putting you as the main character,it's his story not yours.
Fast example : If your read LOTR book do you feel you are the Frodo ? No,because your perspective is not equal.Same thing here.
When Lee have to kill his brother you can imagine how he is feeling but that's not the same thing like letting player feels that it was his own brother,because it's not his story but Lee's.That's why your suggestions even if they are good they wouldn't fit to this way of storytelling.
No flame intended.