Well if it's such a huge moment, how is the fact that he made his choice inhumanely irrelevant? On one hand you make it into such a revealing character moment with massive impact on the future of the character but then you ignore HOW he did it as if that has no bearing on this momentous turning point for the character. That just makes zero sense to me.
I'm not ignoring how he did it. He killed Otis. THAT'S the decision he made. You're so focused on where the bullet entered you're
ignoring the fact that Otis was dead no matter what the second Shane made his decision. And it's the fact Shane was willing to sacrifice someone to save his own life that makes it such a significant moment in the show's history and clearly with regard to his character.
I'm not ignoring that at all, I'm passed that and working on how that decision affects his character. As I said earlier, before the reveal I thought that Otis had done the "noble suicide" and shot himself so Shane could escape, since they made such a point to say several times that he felt responsible for the boy. However, what happened was, as pointed out, a giant moment for Shane's character development. Yes, one of them had to die and be zombie bait. Yes, Shane made the decision to kill Otis, in part for Carl/Lori and in part for sheer selfishness. But to consider it a big moment for the character yet completely ignore or dismiss how he did it is completely contradictory.