If evidence supports a hypothesis, it is upgraded to a theory. If the theory then garners even more support, it may be upgraded to a law. This misconception may be reinforced by introductory science courses
My bold.
I just want to hammer this point home.
You also seem to be looking at this through an engineers eyes. Test and retest until that plane/car/derrick etc is within tolerance parameters.
That's not how science works when developing a theory: that's engineering.
You have been told by people here (and your own sources for god's sake) that your understanding of a law being an 'upgrade' of a theory is wrong.
I can only conlude that this is because your training demands repeatable measures before you can do your thing.
But you absolutley cannot conflate engineering (an appliance of knowledge) with the scientific method (the gathering of knowledge).