In typical newsreader sensationalisim Mr Fantana
No it wouldn't! Every type I've flown has the refuelling panel "flap" hinged at the front. Therefore the resultant airflow would actually keep it closed. Correct me if I'm wrong here 757 chaps, but I assume the same can be said of the 757.
I suspect that the Captain, as I would, returned to stand in case any damage had occured prior to take off. As you can't see the panel from where I sit I'd want it looked at first...just in case.