Earlier quoted context omitted.
If we did science as you seem to think it should be done then very little progress will be made. You should read up on the history of progress in neuroscience. Metaphorically speaking; when you walk into a dark room one has to reach out and try to make sense of things before stumbling upon where the lamp is.
You may want to consider, how much that bogus science has set us back. How long have we removed tonsils, ate the food pyramid into Type 2 Diabetes, measured people's skulls for criminality, and convicted people on the results of polygraph tests? Bogus science can move us forward, but also backwards.
The response to a paper ought not be, “This paper is bogus because they didn’t control for all variables.”. If the paper is bogus then give reasons for why this is the case. Was the statistical analysis wrong? Are there reasons why this can’t be true? Is this new information worthy of further investigation?
It’s sloppy thinking to say it’s a bad paper without having studied the issue and the data.