I've found this interesting.
I'm in the camp that feels it is not inherently tude, or tacky, to want to have photographs in front of a church or other building, just becuase it isn't where you had yourwedding.
I agree absolutely that the party in the original submission were very rue, because they were disruptive and were in the way of the wedding party which was actually usign the church and it's facilities.
I think there are lots of reasons why you might decide to have your pictures in front of a church other than to pretent or imply that you got married there - it may well be more attractive than other options in a city there might be other nice buildings, there might not. Thinking of my hme town, I can't think of anywhere at present - the buildings which are council offices are currently covered inscaffolding, the old town hall is usually covered in banners advertising upcoming events, most of the other nice looking buildings are offices and shops where taking photos would be disruptive (and where the photos would be full of corporate logos)
I don't think it is disresectful to take pictures, any more than it is inherently disrespectful for a tourist to take pictures of, or inside Westminster Abbey or the Blue Mosque. I think it *is* disrespectful if you are disruptive, if you take photographs after being asked not to do so, or in breach of posted signs, of you or your party are causing a nuisance to, or interfering with, the ordinary use of the building.
I agree with TeenyWeeny that the fact taht you (generic you, not anyone specific here) might feel it is disrespectful or ofensive doesn't mean that it is rude.
I used to live in a cathedral city. The registry office was very close to the cathedral and it was very common for eople who had just got married at the registry office to then take photos on the cathedral green, stading in front of the doors etc. I never heard of anyon suggesting it was offensive or inappropriate.
(I have to say, even if the motive is to let people think you got married in a/that church, I am not convinced that is necessarily rude. Weird, yes, but not necessarily rude.