I know his heart is in the right place but I do think he needed to hear this. I believe he felt convicted and that he should preach a little differently. I pray he matures and continues to grow as a Christian and attends a good KJV Bible believing church and learns what and what not to do. Please do not assume all Christians are this way because it would be ignorant to lump all believers together, I believe he may have felt conviction from the Holy Spirit and that he will pray and get guidance from Christ.
Pray for this man everyone.