captain I think you will benefit greatly from your nutrition and physiology courses. You seemed to be stuck regurgitating the theme of the forums versus what the authors, solid nutritionist, and even pro-athletes live by.
Many of these low bodyfat bodybuilding (not all) women are harmfully fat deficient where it effects the organs, reproductive system and bodily functions. They sacrifice for the love of their sport, this is not what the average healthy female should seek to be.
For the average healthy growing child going on a low carb diet is not all that great and probably not even necessary to maintain a low bodyfat. Half the reason (Americans at least) so many people need to go on a low carb diet is because they PIGGED out all their life in the first place.
After all bulking phases seemed to be turning into get fat phases. People are talking about they are in a year of bulking then need to overdose on Hydroxycut to get rid of the fat in 2 weeks. If you try to push this to someone as a trainer you will fail miserably.
You also have to worry about performance, if you have an elite basketball player or football player severely limiting his carbs will limit his performance on the field. These guys are 180,190 lbs burning upwards of 5000 calories a day if not more. Replacing all that with just meat and protein shakes will just bottle their system down.
7 days a week of cycled intensity training is not asking for injury. Untrained people do it all the time, 90% of the time when you see someone with no T-Nation forum knowledge you see they just one day decided to start running and the weight starting coming off. This might not work for some 500lb'er but an every day 160lb woman should not have a problem.
Remember everybody has a purpose try to learn from your courses and manuals.