Yep, because it's cosmetic.
She is a female player (as said in her post) who does not care.
Not to mention, if we're going to be using the "objectifying" angle, let's bring up just how many shirtless male heroes we have in gaming, shall we?
Gamers should really start maturing. Does it matter if no cleavage is there? Nope. But it should equally not matter if it is there.
And I'm a guy so therefore I am the ambassasor for all men ? Also yes they need to stop making he-men and darkside just to save you time i read your post and i gathered " I really don't care either way " which is grand , just to let you know the rest of the post isn't in respone to you from
here. 
Anyway it's not just about "we think it's offensive to women" , Personally I feel it's like that's what the creative team expects of us and that is quite insulting , I want the armor to be the same for male and female , if there are differences I don't care but I and many others don't want the differences to be obvious highlighting of the females chest and ass , I'm going to show 2 screenshots that is an extreme examples . I like to RP as a powerful female nord warrior or a merciless female breton necromancer ( hope that didn't sound creepy) haha

anyway you can't take any female character seriously like this ....

--> http://www.hdgamewallpaper.net/wallpaper/tera-online-wallpaper-1.jpg and http://mmogamesvs.com/wp-content/uploads/2011/02/tera_2010-02-16_17-37-44-28.jpg
That is the kind of stuff we dislike i mean l look at her and the guy to the right . the hell ?, now obviously TESO won't go that far but as I said it was an
extreme example , alot of women if they wanted a female avatar would find it degrading to their character , as a male I find it embarrassing and it's not representing the community properly , why does not being born with a [censored] mean I have to dress like a stripper who's about to give the final reveal ?

The armor is not practical at all , it breaks RP and is just plain embarrassing and disrespectful , the female armor if it goes skimpy will reflect negatively on the community and we will lose out on more mature members , I would not actually play TESO no matter how good it is if it panders to the pervs who marry pillows --> http://www.metro.co.uk/weird/816601-man-marries-pillow and I
personally feel it gives the impression that's who they think we are if they give us [censored] armor .

And just one last point , I hope they have character sliders in the character creation , I'm sick of he-men and barbie's , I want a scrawny archer like
feandil and a beefy strong female warrior like
uthgard the unbroken . Like the single player games , only have weight actually apply to female avatars , men go from scrawny to hulk and females stay at model build even with weight up full 0.o