EvilKitten, sexy dosen't mean weak or unprotected... well, let's enter in your play and start putting reasons too because seems you are not gonna give up with it...
First, i don't know what makes you think that the suit from the concept art dosen't protect well, because it's thin? there are plenty of movies that uses skin tight suits that are meant to protect the user from
elements and i don't see anybody complaining about it, and if you are saying it because of the cleavage exposure... then i don't know what do you think concept art means, because it's clear that the suit covers the whole body and the girl from the images has the zip of the suit opened, that dosen't mean the 3D model is gonna be like that, and even if it end up being like that, right now is too early to speak about it.
Second, by the images it's clearly visible that the suits are not meant to be used with helmets, so the range of extremity of the enviroment that they can support is clearly not wide, so you can't expect the suit from protecting your body from -200º or +200º because your head is gonna be frozen or melt/burnt on even half of that temperatures, so buying that extreme resistant suits will be too expensive for what a normal user would pay for something that he can't even enjoy.
Third, as i said before, as far as we know there will be clothes customization, so if you wanna cover your character in a burka alike suit you are free to do it... mostly, that concept art shows a weareable Hood.
Anyway, whatever thing the design team and developers implement i want them to do it as they want without any restrictions or stupid ethics in mind, it's their game and is their choice, anybody who don't like it should live with it as they can and not complain, even more in a game where you have character customization, if you don't like something just don't use it, easy peasy XD , i still remember that stupid and unnecesary change made to the female Bastion Class in Firefall... i hope this time they don't listen the stupid complains of the people about this and that and do as they want... everybody speaks about how important is the expression freedom, but then don't allow others' one because it don't meet their way of think or likes...
º(¬_¬)º