The camera followed the ball and was focused on the half-way line when attention was brought to the 'incident' by the noise of the Partick fans. I'd love to catch everything that happens but with only the one camera there'll always be things off the ball that just won't be caught on 'film', so to speak.
Of course, there's a chance that the Partick lad will have caught sight of whatever happened. He was filming from the centre of the East Stand - same side of the ground as the Partick fans.
Cheers