When does the base become a sanctuary?

[chapmaja]

Play from Michigan several years ago 1-0 game, top 7th, regional final. R1 at first. Pop fly right on top of first base. f3 goes just behind the base and attempts to catch the ball reach over R1 who is standing on the base. The ball deflects off F3's glove into foul territory. Plate Umpire rules R1 out for "defensive obstruction" (per the coaches comments in a postgame interview).

I have heard difference versions of the play and the lone video is not conclusive as to any additional action.

What I have heard is that the runner was actually leaning back into the fielder trying to make the catch. In that case the interference call would be correct. I have also heard she was just standing on the base when the ball hit the glove and bounded to foul territory.


Opinions? My only concern is that the PU made the call on the play, when if the alleged action of the runner leaning back into the fielder did occur, he should have the worst view of the two umpires.