At first, I was agreeing with Steve. The deal struck me as chintzy, no offense Cesar. But after giving it some thought, yes, I can see dinging the guy, especially if it was someone I didn't know already. He should have been prepared and if you just bail him out he's going to forget about it and do the same thing next week. It does beg the question however, why not use a lav mic? I can't think of any ceremony where I've used a hand-held (wired or wireless) for the minister. I wouldn't want to put an ugly stand in their pics.
I agree with the fact that I've never used a stand for a minister either. However, we don't know how the whole thing went down. It's possible that the couple was not going to have anything mic'd and this was sprung at the last moment and the DJ was trying to help them out. A whole bunch of different scenarios are possible.
I've asked for assistance before in unique situations, and I've given help in situations when I can.