I am referring to the first video in the article about the divorced couple who got remarried at a Bar Mitzvah. Listen at the part where the Rabbi says “Arayot” and then “Arusot”. What is he saying??
He seemed to be encouraging the people to react to the brocha. It seems common with Arabic music styles. I have no idea why he did it in middle of a brocha, but it can’t be worse than the ay ay ays, singing, clapping, and dancing I’ve seen some sects do in middle of davening.