Morgana Story question
So everyone's talking about the Shyvana story and how it's literally dumb ("streamlined!" hurr durr), but I just had a small question about the Morgana story. I liked it overall, but there was one weird bit. When Morgana is talking to the Cleric, she asks him "Do you like hurting people?" and he says "No." Then she's all like "But actually yes." and the Cleric is about to say "Lol no what are you on." when the Pupil interrupts and says "Of course no! He's a nice guy at heart!" But then the Cleric slaps his sh!t and says "Shut up! I don't need you to lie for me!" Like, I get that he's abusive old fogey but he was LITERALLY about to defend himself again and the kid was LITERALLY standing up for him, so why would he pretty much EXPLICITLY admit guilt in smacking his Pupil down? I understand that he's an ass and pissed about being interrupted, but it makes zero sense for him to say "Shut up! I'm actually evil." instead of "Shut up! I'm TALKING HERE." His slapping the kid at all is already a perfect implicit admission of guilt. It's showing, not telling. So why does he tell us? It ruins the moment for me.
Especially since we're pretty much told that the System has established the fact "getting smacked is status quo." Both the Cleric and the Pupil believe this, even though the Pupil denys it on the inside. So why would the Cleric be mad about the Pupil's defense? The Pupil came here for the punishment, ostensibly. Why would either believe that the Pupil defending the Master is somehow incorrect or a lie?