Well, I agree with you (sorta) as well. I don't believe there is a one-size-fits-all anything when it comes to training. We're all different and we all may require a different approach.
BUT...one thing remains constant - if you don't challenge your muscles, you will not have any results. Unfortunately a lot of women have no idea what weight they should be using because there's this archaic stereotype that we should be lifting light but more reps. Not true. If you're using a 2-lb Barbie weight and lifting it 20 times, IMO you're not really accomplishing anything because that's not really a challenge. Sure, you're probably "building strength through efficiency", but who wants their muscles to become efficient? Efficiency in weight training is useless because then the muscles aren't being challenged. Making something more efficient generally means that you're making something easier. If working out was easy, it would be called an "easy out".
Bottom line (and getting back to the topic)...women's muscles are no different than men's. The only difference between us is the amount of testosterone coursing through our veins. Therefore, a woman should follow the same lifting rules as a man with the same goals.
"Somewhere, someone isn't impressed by your looks. Not all men jump through the hoops of your fire. You're unbelievably boring to more people than you'll ever know." --Henry Rollins
"If someone tells you something is easy and they can't explain how to do it, it's not easy." --Steve Shaw