OP was quoting the article, about as on topic as you can get!
I am never judgemental of others religious convictions, people are obviously entitled to believe what they want, however I would expect someone with a background in mathematics to teach mathematics, someone with a background in history to teach history, someone with a background in science to teach science and someone with a background in bible theology to teach R.E. (religious education)!
I cant help but wince every time I hear a story about a deeply religious person becoming a teacher to teach biology or history! Especially in america where some already dispute the "theory" of evolution and refuse to teach it in schools!