Not necessarily. There's plenty of subjectivity, politics, opinions, and traditions in setting of standards and law. Not saying there isn't objectivity for the most part. I'm glad my film and many other things in my life are made to high standards, ISO or whatever it was fifty years ago, too.
Remember, they want to sell film. They want to make statements so conservative they will never ruffle anyone's feathers or suffer any kind of a loss. I have a lot of "expired" film. In fact, maybe all of mine is! Guess what? Even the color film still is working fine.
"Argument from authority" is one of the classic methods of debate. And one of the weakest, especially against evidence. On the one side of this debate is Authority, which is human, do not forget. On the other side is Paul, who has defied said Authority for thirty years doing what shouldn't be done without the slightest bit of problem that he's seen.
The earth is flat, heavier objects fall faster than lighter ones................it's a long list.