Because the semantic for each term in a programming language is pretty much a 1:1 relation to a sequential and logic-based ordering of terms in bytecode (which are still code).

Also you wouldn’t want that, humans can’t review bytecode

The one great thing about automation (and formalism) is that you don't have to continuously review it. You vet it once, then you add another mechanism that monitors for wrong output/behavior. And now, the human is free for something else.