How is it so, i have looked up on the references, its not "moral" its a choice. This is what biblehub states
The ceremonial laws are called hukkim or chuqqah in Hebrew, which literally means “custom of the nation”; the words are often translated as "statutes." These laws are not obvious to common sense; for example, the destruction of perfectly good animals for sacrifice and the rejection of food sources such as pork and rabbit. Instead, these statutes seem to focus the adherent's attention on God
That is not a moral law.