Assuming it had not been a hoax (and, even if it was, there are similar examples of Christians apologising for homophobia and bigotry in the name of their religion), I actually am not in favour of it.
In fact, I am strongly against this type of apology.
Rather, in my mind, an apology needs to be personal. I am a Roman Catholic but I do not believe that I have the power or the authority to apologise on behalf of that Church to the many people it has, and continues to, hurt. Similarly, I don't see how others can apologise for the actions of their wider communities either.
Maybe it's just a semantics point but, to me, it is important.
With that said, I am wholly supportive of those religious folk, esp. those who are "straight" who are unambiguously in favour of equal rights for LGBT peoples and, more personally, who welcome LGBT people into their faith communities. Furthermore, those who are LGBT and practitioners of faith can play a powerful role in hopefully ensuring any future hurt caused by churches in the name of God is minimised.
Yesterday, I attended a one-day workshop here in London for LGBT Roman Catholics. It was tremendously powerful, if sometimes difficult, for me, esp. as my intuitive Roman Catholic faith tends to be on the more reactionary and judgemental side. I don't do Pride but a visible Roman Catholic community will be marching at London Pride (
www.sohomasses.com) - whilst I won't be marching, I did however buy one of the t-shirts that they will be wearing on the march. It's a simply design of a cross and the words, "Nobody knows I'm Catholic".