Ok.
I'm done here, I posted some of the results that popped up for me in a google news search and already said it also refers to Muslim religious leaders. But obviously some media do refer to pastors as cleric because, well there are articles.
Maybe you're heart was in the right place, but as shown above cleric is overwhelming used to describe Muslim preachers so it's hard to give the man the benefit of the doubt, especially based on the organization he belongs to.