So Scott Walker walks in to a same-sex marriage reception ...

Wisconsin Gov. Scott Walker says that he attended the same-sex wedding reception of a relative, even though he disagrees with same-sex marriage.

I'm wondering what would have been the response during the last election had Mitt Romney, a Mormon, admitted that he had been to the reception of a polygamous marriage of a relative even though he disagrees with polygamy.

Would that have been more or less controversial than Walker's revelation? If so, why? Is there any reason it should be?