Ksandor wrote...
As a 36 years old guy I am not the main demographic of video games anymore... 
I don't know, as a near (depressingly near) 35 year old, I'm honestly quite amused by the idea of EDI in a body. The reaction of the Quarians and Geth if she is in the squad when you meet them will be entertaining if nothing else.
That said the gendered body does seem a little redundant, since as per the geth, an AI wouldn't have a biological sex or gender (unless programmed to have one...which might explain EDI I suppose). But then I imagine the majority of people would have seen an androgynous artificial form as seeming 'male' by default, which would jar with EDIs clearly female in game voice and well known voice actor.
As for whether the player or NPCs get to scrog it, well, rather tame objections when we consider in ME games you can get with jiggy with aliens (hell Kelly got jiggy with a varen!), the gender bending in DA:O and in other gaming universes the suggestions of 'Code Blue' (to quote the infamous TSOL song) love in the Elder Scrolls games.