It behooves the authors to present the limitations of the study. Lay people, unfortunately the majority, will interpret this to be definitive.
They're not the target audience of scientific papers.
Perhaps putting that context into publications would be more effective?
It's called introduction
But research publishing is a traditionally internal dialog among people who ostensibly spent years being inducted into a common contextual foundation.
Post-web journalism and open access publishing might be challenging that tradition, but the answer is probably not to staple an introductory textbook to every paper.