We had a great priest officiating at our wedding, but we were told beforehand, and told our photographer, that there were no pictures allowed nearby during the actual ceremony. He could take close pictures during the processional and recessional, but during the ceremony he was in the back of the church or the balcony. We went back in after everyone left and recreated the ceremony for pictures. I wasn't thrilled with our photographer nor his pictures anyway, so it really didn't matter.
That couple in the video have a great attitude. With easygoing attitudes like that, they probably have a good chance of surviving marriage.

I wish them the best.
ETA: Do cameras make noise like that still?

It did seem loud, and VERY close to the priest/couple.