The sense I got from the various reports is that whatever broke the window also hit & seriously injured the passenger, probably knocking her unconscious, and so her upper body ending up jammed in the window with her having been partially sucked out of it would fit with the reports...
I doubt it. If the pax was in line with the axis of the fan there would have been a high energy penetration. Being that the failed window was behind the wing, its likely that it was an unlucky strike of some debris falling rearwards.
The report is she was out of the window up to her waist, and the injury likely occurred flailing in the slipstream against the fuselage.