Because I think it would highlight why "nothing changing" is a bit odd...
I've never really introduced myself here and I'm sorry for being overly dramatic, but I am a transwoman (please, hold back any image you have in your mind on the matter, it's probably wrong) but I am also a lesbian. I'm bringing this up because there's a peculiar matter with that, in that the church doesn't believe it exists. Even sex changes are "not recognised".
Now what does that mean? Under a "nothing should change" policy, I can, right now, marry my girlfriend and have a homosexual relationship. I cannot, however, find a man and have a straight relationship. Now this is clearly contradictory with most of the above... because if "nothing should change", then you're permitting me a homosexual relationship.
Unfortunately transgender people are discriminated against in other ways too. I cannot give blood, for example.
But, quite happily, I can have a big church wedding with two people in a dress. Lovely.
(Sorry for bringing personal issues into this, I just thought the situation would nicely show the fallacy in nothing changing.)