Interesting opinion. I'm sure you know that if I didn't light her with anything and metered on her, then everything else would be completely blown.
Of course. I'd just wait for better light. Perhaps a less strong lighting would have been less obvious.
This isn't a knock against you but, I've been told repeatedly that when someone KNOWS what they're doing with flash, you can't really tell they used it. I've yet to see an example of that myself, but I've had my eyes open for it. Until then, I prefer natural lighting.