Tangent: Does DA2's reality of having the romanceable characters all be bisexual complicate things in any way?
Not have as much as Dragon Age 2 having maybe-bisexual-there's-no-clear-answer companions.
David has said that companion orientations are decided early, but we know that DA 2's all-bi method was a combination of wanting to be fair and needing to get the game out in a limited time.
So, Merrill... bisexual?
Because this conversation started as wondering if there might be some lingering assumptions about what 'type' of person feels straight as opposed to bisexual or gay.
If Merrill appeared in DA:O or DA:I as a bisexual companion, I'd feel more comfortable, but as-is, it's quite possible that she was seen as straight but they removed her gender toggle during development. Likewise, Liara is neat... but in ME 1, I'd say that she was designed to appeal to a straight male gamer and her bisexuality was less the product of a writer saying 'oh yes, this type of person could totally be bi' and more her coming from the Planet of Presumed Male Fantasy.