I think this is being taken too seriously, it's only an advert. Add's frequently play on caricatures, and this is just another one.

I have not seen the advert in question, but it sounds effective. Some nice scenery, an effective message (we're doing everything to make you welcome) and a bit of "come hither". If one or two of the Mary Whitehouse persuasion are put off by a couple of mild obscenities it is a shame, but they can always stay home, where they will hear far worse in any street containing schoolkids.

I bet the British adds when we do the Olympics will be far more cringe-inducing.