Looks like some new trend in politically-correct gaming. They made all their female sexual objects pretty unatrractive, because they wanted to avoid "objectifying" wymynz.
Eh, you're not that off the mark. Gaider is literally SJWing over this issue on tumblr, for example:
http://dgaider.tumblr.com/post/69901751396/on-character-appearances-and-mods. It has been brought up repeatedly by Bioware fans - thereby proving, on one hand, that they are not complete drones, and on the other, that they are in it to virtual fuck these NPCs - but to no avail.
Nobody knows what goes on at Bioware headquarters but the SJW crowd looks to have immense creative control within the DA group, to the degree that they are able to dictate art design and characterization completely.