Hypnotist can do the same thing! No where was this condone in the New Testament.
Paul the Apostle put a limitation on this kind of behavior to the Corinthian Church.
Read First and Second Corinthians. Hagin Sr & Jr. Price, Kenneth & Gloria Copeland never preach to take up your Cross, deny yourself and follow Jesus as instructed by our Lord Jesus. Instead,their teaching increases man and decreases God!
They may fool some of the people but they can't fool all esp. any real discerning child of God. This laughing uncontrollable, hissing and slithering like snakes is unseemly. The Apostle Paul but a restrictions on real not fake Spiritual gifts when the Church assembled together because he said it would make visitors think they are crazy! It is coming a day when these charlatans & others like them will be exposed. Jesus cleaned his Temple of the money changers and wolves before and will do it again! I can't say how God will expose them and their false theology but keep watching the Lord will and is pulling the cover off them even now, then they will know that He is God and they are not!