However, I can see how Rails "gets things done", and why so many people like it.
Perhaps the author came clear with his opinion a bit too hastily, but you shouldn't ignore someone just because you don't agree with every opinion he has. This was not an article about "why I don't like Rails", that's probably why he did not explain why he doesn't like it.
What comes to the article itself, I think it was decent and I don't agree 100% but not bad advice either.