^
That scene, I feel like I'm in the minority here, found it disturbing. Fits into her deeply troubled persona for sure.
It seems lots of people find it disturbing.
Which I find interesting since there have been plenty of scenes that were basically similar to this one... a companion or the PC kills an NPC. Reactions to these scenes are typically along the lines of 'lol that was badass/funny' or just apathy. I'm mostly thinking about how people reacted to Renegade interrupts in ME (I remember one where you could push a guy through a window) or 'the murder knife' (I think that thing has a fan club somewhere).
But this is definitely different....is it Sera's anger? The scene is more emotionally charged than is typical. Or, maybe it's how she kills him...the beating isn't as quick as, let's say, Shepard just shooting someone. The thing with Sera felt more...personal? Very raw. I think it's probably both.
I think it is good that the scene can bring those feels.