People will find anything the complain about. Many yrs ago we were very active in Y-Guides and sports at the local YMCA. We had one atheist family complain that there was a prayer one day to open a large Y-Guides event (the program was called indian guides at the time but has since changed the name). HELLO the C in YMCA stand for Christian.
We are not Christian, but my daughter wanted to take drama at a local Church that was offer a youth arts program. While I felt the play turned out to be a little over the top, I never once complained about Christian content in their program.
Funny side note...A good friend and I found it very funny that my daughter, the only non-christian in the program, got the lead role in the play. So guess who had the speech about accepting Christ into your heart at the end of the play...