Yes, this idea does bring a song to mind - https://www.youtube.com/watch?v=lAE5ZSnTQfU - and yes, I recognize that the song dates me. Oh well.
Even if the religious leaders were legitimately looking for answers about divorce & marriage, there was a flaw in their approach:
And Pharisees came up and in order to test him asked, “Is it lawful for a man to divorce his wife?”  He answered them, “What did Moses command you?”  They said, “Moses allowed a man to write a certificate of divorce and to send her away.”  And Jesus said to them, “Because of your hardness of heart he wrote you this commandment. Mark 10:2-5
Marriage was a Covenant. Covenant’s are not for breaking they are for keeping. Yet, people fear commitment and run from it. This is why the people of God had run from Covenant with Him and this is why a person could ask Jesus about the lawfulness of divorce…because they wanted an easy way out. They wanted it so bad they had manipulated an Old Testament provision (Deuteronomy 24:1-4) that was only given to protect a woman from a hard-hearted man. They were searching for what other loop-holes might be available. This is a flawed concept. Once inside a Covenant, all energy should be expended on keeping that Covenant, not on breaking it. With a Covenant, there’s no easy way out…and there shouldn’t be.
Notice that Jesus asks for what Moses ‘commanded’. Clearly, He was trying to get to the heart of the marriage Covenant…as He next quoted Genesis 1 & 2:
But from the beginning of creation, ‘God made them male and female.’  ‘Therefore a man shall leave his father and mother and hold fast to his wife,  and the two shall become one flesh.’ So they are no longer two but one flesh. Mark 10:6-8
Even though Jesus asked what had been commanded, these men replied with what had been allowed/permitted. Jesus asked for granite and they gave Him sand. He asked for steel and was given milk-toast. If you and I were to go through life looking for the easy way out we would miss nearly all that God intends for us. We would miss opportunities to grow. We would miss opportunities to experience high’s and low’s that would shape us and form many memories. We would miss getting into a tough spot only to see God’s Strength in our life. I suppose we can seek the path of least resistance and search for the easy way out…but it’s a cheap imitation of a real life. For me, I want to commit to Covenant! Covenant to my spouse. Covenant to my God. Covenant to His people. I want to refuse the easy way out. How about you?