I'll put my thoughts plainly.

I never have smoked. But let's say an important person .. well, artist like Hikaru Utada suddenly died. There's a ciggy on the table.

I would never think of lighting it up. Because I don't smoke, and never have so I don't resort to that as a stress relief or coping mechanism. Simply put, the possibility does not exist.

As a non-smoker, if I inhaled it, I would have hacked and coughed like a man dying of tuberculosis.

Since she resorted to the cigarette, since she probably downed it without her lungs complaining, at the least she's experimented with that and possibly other things quite a few times.

Sometimes we forget that she's a person. Smoking is not a good choice, but at least she admits to not being a smoker. Maybe this is a public denial of a bad habit, or perhaps she really doesn't smoke regularly. I know a friend who smokes with people socially, but is not into the habit itself. Perhaps she's alike in that regard. Basically, it shouldn't really matter to us as long as she keeps up the good beats.