Its not a leap, its called loving and believing the truth, were clearly told remarriage after divorce and marrying a divorced woman is adultery many times by Yahushua Himself.That is a Leap! You are claiming that you can read the minds of the disciples. You are claiming to know their thoughts. That is not a credible claim.
Verse 2 says that she CAN be released from the law of her husband. The first part of the verse sets it up so that we understand that death is one way that she can be released.
Verse 3 reiterates the point so that we KNOW that the point of these verses is that she is released in the case of death.
These verses do NOT say that there is no other mechanism for her to be released from the law of her husband.
Mat 5:31 “And it has been said, ‘Whoever puts away his wife, let him give her a certificate of divorce.’ Deu_24:1.
Mat 5:32 “But I say to you that whoever puts away his wife, except for the matter of whoring,h makes her commit adultery. And whoever marries a woman who has been put away commits adultery.
Notice that verse 31 says that anyone who is going to put away his wife should also give her a certificate of divorce.
(again, God does not want people put away who are still married)
verse 32 says that whoever marries a woman who is "PUT AWAY" commits adultery.
But, if the woman is released from her husband, then she is freed to go and marry another.
Deu 24:1 When a man hath taken a wife, and married her, and it come to pass that she find no favour in his eyes, because he hath found some uncleanness in her: then let him write her a bill of divorcement, and give it in her hand, and send her out of his house.
Deu 24:2 And when she is departed out of his house, she may go and be another man's wife.
God is consistent and his law does not change!
You claim the law cannot be changed? Why don't we stone people to death for not keeping the sabbath as were commanded in Numbers 15 32-36? Because the Paul told us not to judge people for how they keep the sabbath.
You accept the changes spoken by Paul that make your life easier, but you deny and turn away from the truth spoken by Yahushua when it makes your life harder or less pleasurable. Repent!
2 Thessalonians 2
10 and with all unrighteous deception among those who perish, because they did not receive the love of the truth, that they might be saved. 11 And for this reason God will send them strong delusion, that they should believe the lie,
12 that they all may be condemned who did not believe the truth but had pleasure in unrighteousness.
2 Timothy 4
3 For the time will come when they will not endure sound doctrine, but according to their own desires, because they have itching ears, they will heap up for themselves teachers;
4 and they will turn their ears away from the truth, and be turned aside to fables.