Simon, I think you're missing the point.
Both the language and the intent of the letter are disturbing for their vagueness.
Who determines what are "effeminate characteristics" and how? What is the standard?
Correspondingly, what is a "masculine hairstyle or type of dress" in reference to women?
Who gets to determine if a man has "effeminate traits" in the "bearing, body language … [or] speech"?
How "tight" it too tight?
How "extreme" is too extreme?
This is just going to encourage the already overly intrusive elders to become even more obsessed over things that frankly should be none of their business.
On the other hand, it is yet even more evidence of the overly critical nature of this cult. It's control freakery on steroids.