The only argument I was given that made me question my call was "What if the same thing happened to a catcher at the plate?" I.E., catcher gets hit, has full posession of the ball until she lands on ground and then it bounces out. The 'ol' "Show me the ball" question comes to mind.
You only need her to "show you the ball" if there is a question in your mind whether she had control at the time of the tag. I have an out in the OP and in the play described at the plate.