this is a nonsense statement. yes, unfortunately format logic is wholly inadequate to express what we need in the creation and application of laws. so yes, fuzzy issues about the intent of the law and the intent of the accused some into play, along with a healthy schmear of cultural norms.

but to say that the laws and precedence aren't largely concerned with building some semantic context, and that lawyers don't build chains of reasoning in that framework to prophet their positions is absolute nonsense.

you're positing a world where a judge just rules entirely on feels, and I think most judges would be quite offended by that notion.