Yes, very good advice. Many times no retouching is necessary. Unless you're a photoshop pro, messing around with an image excessively can make it look worse than the original image. Most times the most I'll do with a raw image is lighten it up and crop...and of course get rid of a pimple here and there that my foundation couldn't hide. =)
Some photographers also have a bad tendency to over-photoshop model's images. I mean, it's one thing to make a model look flawless but not if she ends up not looking real at all! I did one shoot with a photographer who loved to airbrush his models. The images I did get from him were really gorgeous but they weren't images I could use to submit to jobs for because I looked like plastic. Those type of photographers should shoot for publications like Playboy where it's public knowledge to make the models look a bit fantasy-like.