Well I hope you are not equating the discussion happening in this thread with the 'political correctness police jumping on someone'. The only discussion happening here seems to be about whether it is appropriate or not. No one is suggesting that the author be punished or admonished for it.
It seems like a very valid thing to discuss, and suggesting that people might be 'triggered' for even bringing it up only serves to undermine a legitimate discussion on it.
No one here seems emotionally distraught by the author's words. Rather, all of the discussions about the inappropriateness of the remarks seem to be pitched in a constructive and explanatory way, without regard to whether they were offended by them or not.