Some and some brilliant philosophers such as
Karl Popper.
Not at all. The logic of scientific discovery is crystal clear, rigorous, and robust.
No, they don't just make up shit and sit back. They first must have a falsifiable theory (or hypothesis) and demonstrate its falsifiability. Then they must support that with good science.
THAT, my friend, is where these 'scientists' have (allegedly) betrayed their integrity. No, you cannot make up data. You cannot manipulate data in a biased manner. You cannot eliminate data unless there is a statistical or other valid reason, to do so. And, you cannot manipulate the peer-review process that determines the scientific integrity of the work.
Technically, they are correct. It does not disprove their theory. What it DOES do, though, is show that their theory was never supported with good science. Thus, the conclusion is that the theory is not valid. The principles of scientific discovery are quite thorough.
I hope I just did, but do ask. This is an important topic.
A plus is that more folks will become aware of the principles of scientific discovery, and that's one good thing that may come of this mess.