It didn't read like that to me at all. If anything more like the author's slightly pacifist (and actually, explicitly says of their father 'literally wouldn't hurt a fly'), making sense of their father's career.

But as sibling says, it like any obituary needs some context; what do you expect for someone who spent practically their entire career in the military? I think pick almost any other and it will be 'worse', if you didn't like that.