So the laws about sex are not moral laws because they are laws about sex? Just because a law is in one classification does not mean that the law cannot be in a different classification as well.
If there is no explanation given, then how can you know what the marriage plan is? The marriage laws have certainly changed, which means that they are not unchanging moral laws.
I have. The laws are listed there, but they are not classified into groups. Later, Jesus says that He is not going to change any of those Mosaic laws, yet His followers have changed some of them. Jesus put all the laws into a single unchanging classification, while others have split them into the ones that still apply and the ones that no longer apply.
A pity that, the law against cotton-polyester shirts was a good one.