I’m sorry, but that’s total nonsense.
If you dismissed contamination as a “charge” that “represents an escape hatch” for “researchers to simply toss out” things in any other area of science, you would kill people. Would you buy medicines from a pharmaceutical company that took that kind of attitude, for starters? I think not.
No, no, no, no, no, no, no, no! That is most certainly NOT how science works.
You CANNOT overturn a thousand experiments with just one contradictory finding. If you could do that, you would also be granting a free pass to astrology, homeopathy, feng shui, water divining, reading tea leaves, and tobacco companies trying to claim that smoking is good for you. You would effectively be giving everyone a free pass to create their own realities.
As I said, what you are arguing against here are the most fundamental, basic principles of measurement that apply to every area of science. You are not just arguing against scientific findings, you are arguing against the entire scientific method.