Deep Profile "V" Rims

I'm not an expert, but I think that your information is a bit awry. High (deep section) rims are stronger than low profile rims. Low profile rims are lighter and faster for climbing. Deep profile rims are heavier and can be more aerodynamically efficient....depending on the use, and the user.

You're right but its worth adding that the slight vertical flex in a box section rim can actually make it more durable. By absorbing some of the impacts during use.