Hair makes me hot. oh yeeeaaah.
yeah that deep rooted hair.
brown hair...red hair...curly...mmmhmm bow chika wow wow
I know what you guys are saying is sarcasm.... but let me explain something (hard to explain from a 'worldly' point of view).
My wife, daughter, all of my wifes relatives, people in and near my community all cover and dress modestly & plain (mennonite). Here is an example:

I did not grow up or live like this forever. I was in world orthodoxy most of my life.
Let me tell you something brothers.....
I can't even explain it other than saying you have no clue "how pornographic" the "outer world" seems, when you are surrounded by women dressed as this. I never realized how much I sinned. Our God was not kidding when he talked the plank (at least in my case).
Yes even when I see hair on females, I have to keep myself in check. I realized that I had always noticed, but never thought anything of just "hair". Now that I am aware after being "unplugged" for a while from a lot of the worldly ways, I can totally see how exposed hair can be revealing.
If it was not revealing, consider, why so many women spend $$$$ on hair products, shine, enhancers, coloring, etc etc etc... (and whatever that horrendous smelling stuff they use in salons)
A Christian sister should reserve her GLORY for her husband or future husband.
She should not even help in the smallest way to lead a brother into temptation.
I heavily respect a woman who has the courage to help not make me fall even for the slightest glance. If women care for the well being of the brothers in their churches, they should be very modest and cover their heads.
Now I'll go a bit more extreme:
1) It's hard to fall into lust when a woman is wearing a head covering.
2) It's hard to fall to lust when a woman's "curves" are not shown through tight clothing.
3) When dressed plainly, sisters of a church will never compete in garments, shoes, etc.
4) When not wearing costly array, the competition ends.
Anyway, I believe that the EO should take examples from their history and their nuns.