A pretty strange article IMO.
The writer says that his hate for the 270 is based on poor kills and wounded game, experienced by himself and others over a long period of time.
Then he finishes up by saying that he still owns 'several' 270's and still hunts with them, despite the hating and the wounding!

Personally I've never found the need to hate the 270, or any other cartridge that I've used for that matter.
I do like some cartridges more than others though.
Never found the need to like or dislike a cartridge based on liking or disliking a particular gun writer either.

My first 270 was bought back in 1979, and since then I think I've owned and used a total of five different bolt rifles in that chambering.

I think anyone who is constantly having problems killing game with the 270 Win, must be having problems with bullet placement, bullet performance, or both.