Hear no evil, see no evil, smell no evil?
We're living in a world where nobody alive remembers what it was like to fear night.
In medieval times, the world dreaded sunset. Fire is a hard thing to control properly, and when the darkness did hide threats, firelight rarely softened the menace unless used as a weapon.
Sight is a hugely important sense, as is sound. Definitely. Without the two, we have touch as the next most reliable sensation, and when mobility is also stripped, touch is effectively taken away as an exploratory sensation beyond the immediate area.
Scent would fall next to last. Although natural human instinct is often tied to scent (when to have sex, run when you smell smoke, run when you smell death, etc), that's one of the only two sensations she has much reign over currently-- smell and taste-- and considering the protagonists's position, perhaps the story needs greater concentration on what she smells as she lies there, but most people in that position would consider sight, sound and taste as the big three key to independence and, as a result, assured survival.
So, in summation, while I agree with you that the olfactory sensations are important, I think that most of us, if tied up in a nonconsensual way and our sight and hearing taken fromus, would go a little nuts not knowing what was happening around us. I think that smell is instinctual and that touch would be far more important to her-- what litle she has of it.
However, I do NOT think that you resemble an asshole, Mistress Spatula.
:p