Diva f module requirements

I've checked the modules requirements on wiki, and I'll have to disagree at some points.
I'm not ambitious enough (yet) to finish the songs on Hard with excellent, so I was quite surprised, that all the special outfits were there for me to purchase.
So far I've finished all songs on normal (excellent) and on hard (standard and a few greats).

The ones I'm not showing here I've already purchased.

My results are as follows:

Easy: Didn't even touched
Normal: All Excellent
Hard: S,S,S,S,G,G,S,G,G,S,S,E,S,S,G,G,S,S,S,S,S,S,S,S,G,S,S,S,G,S,S,S
Extreme: Same as Easy

I hope it'll help you guys ;)