Yeah like he's only ever positively received when he lies his ass off about his discharge, and I feel like there's meant to be a noticeable jarring disconnect between the way he's received for killing "a [SLUR]" (probably just some dude walking!) and when he reveals the reason for his discharge. Like I took it as a condemnation of both the military, the bloodthirsty and racist American public (I mean all he had to do was say "some [SLUR] was coming over a ridge" or whatever and he's "a hero") and contrasting the exuberant praise he got for the former with the "jesus christ you basically killed a guy and got away with it, you can't ever tell anyone" reaction he got when he revealed the latter was meant to underscore all that