I'm just grumpy that they could have given us a feminine version of the red suit if they really wanted them to look similar. Like give it the same red color, but an open neckline, maybe a jacket with a long tail so it flowed behind her.... Basically give us some details that look girly!
If I'm forced to play a girl to romance the characters I want, at least let me play a super girly one! As I've said many times, female player characters have been shown to be secondary. None of the mandatory clothing, like the ball and casual outfit, have been made with the female PC in mind. You can visually see they were made for men, then had boobs slapped on them.
I think it's more that many female players don't like the whole 'girly' look. At least that's what I've gathered from being on the forums. They used to have it where there were feminine versions of the armors when applied to female characters (DAO), but then people complained about it. So they took that out completely, and now, (from what we've seen so far) the female armors/outfits are the exact same as the males. This isn't necessarily a bad thing, and I agree that some, if not most armors should be the same for both genders. I just wish that they hadn't gone to the extreme and done this with all armors. Of course, this is just speculation, as we haven't seen all armors yet. But, it does appear to be what they have done for the casual and ball options. I wouldn't suggest that they replace the current look, as many female players would be unhappy having to be forced into something like a dress, but I wish we would have gotten the option for either gender to wear something less military-business like.