JR,
I know it's rather subjective of me to say that. I think by looking at the downward trajectory of the ball as it relates to the distance of the ball to the webbing of the mitt, along with the space between the ball and the dirt, there is enough evidence, at least for me, to form a logical opinion that suggests the ball was uncaught.
Of course, this is an opinion, and you know what they say those are like!
Tim.