No of course not. I don’t think that’s the writer’s point do you? He’s not defending the Nazis at all!
I know he’s not.
But when you start wars, these things can happen if it all goes badly.
They could have been more like the Czechs, they didn’t bother with the raping, they just flat out murdered any Germans they found.
The Sudetenland won’t be giving them any problems anytime soon.