Do you pass cars that are stopped at the lights? Despite knowing that for the most part they are faster than you?
Yes, then what's your problem with the woman doing the same...
I have to say, I read this thread imagining that the lady cyclist was Any Cyclist and the faster cyclists were cars. It's the exact same line of thinking, really. I personally don't mind because I don't encounter many cyclists on my journeys, and when I do I just overtake them and don't usually see them again.