If a student was babbling nonsense in front of the entire classroom and the Professor tried to amicably ask the student to please go study a bit more because he doesn't seem to understand some basic issues, and the student continued to ramble on filling up the entire 2 hour class session with his misunderstanding, would the Professor be uncivil to finally put his foot down and demand "please stop".
Frankly, you are no such professor and I am no such student. This is a discussion among peers in a forum.
I don't know why you can't comprehend what I have already written. The "transaction" which contains the input data for a script, can be set by any external entity. How do you propose to require that the bits & bytes of that input data declares its dependencies when it is impossible to force the external entity to declare where the data came from?
Why do we need to
force the external entity to do its job correctly? If a mechanism exists with which this entity
can do its job correctly, then by not using said mechanism the fault lies entirely with that entity. If there are subsequent systems built which utilise said entity, they will have to be updated to remove their reliance upon it because it is faulty. To hope for anything else is to hope for the impossible.