As with other places that have passed these laws, the spoken intention of the law is quite different from what the rhetoric implies. (stopbsl.org)
In this way we fulfill the deeper intention of the law, that is, we find life in the way of life to which God calls us. (religion-online.org)
Instead, I think Jesus was simply pointing out that the religious leaders were not following the law at all, but were instead misusing the law in a way that allowed them to dishonor their parents, which was the exact opposite intention of the law (see 7:13). (redeeminggod.com)