You're all assuming that everyone who plays a male PC is straight. Well, or that everyone must be straight, and forcing the PC into a heterosixual relationship is even offensive to me, and I'm het.
Actually, no, I don't - and most of you are missing my point.
Amata started out as a childhood friend of the character. One of the typical plots revolving around such,
especially - but not always - when the two kids are of opposing sixes, is that they develop their friendship into a full-blown romantic relationship (TVTropes codifies it as "http://tvtropes.org/pmwiki/pmwiki.php/Main/VictoriousChildhoodFriend").
If Bethesda wouldn't get rid of her as soon as the main game starts,
and didn't include such a plot, they'd meet with much more player complaining than the rather tame "I wish she would play a role in the main quest."