I have to apologize, my initial read on that was that it was sarcastic. Like that whole right wing way of derailing a conversation by using the correct terminology of empathy in the wrong way at the wrong time on purpose because they think it's funny. And then the "whudabout teh tolerant left?!" cry.
Reading it again, I can see that it could be sincere. I think it's just an unexpected response to a news story on a public forum (as opposed to, say, a private conversation with friends), and that's why I read it wrong in this particular context. There's been a recent increase in conversation derailers that has me on the lookout for them