Whether a congregation is large or small there should be decency and order. 1 Corinthians 4:40 KJV let all things be done decently, and in order. We were unable to the view the audience by the clip,  but when a pastor does not know whether to look up, down or around, there could be something distracting going on, and indeed that appeared to be the case. This may very well constitute an understanding praise dance.  It is not the same as praising the Lord in dance. It is self worship, and it is a distraction off God. There is an article post which goes further in detail.