Science is a matter of theorization and subsequent development of confidence through testing theorization.
It is arrogant and manipulative to view science as black and white and then call everything white due to a lack of 100.000% confidence.
We have many things labelled to be a theory that are complete enough to be acceptable answers while still being considered relatively incoherent or insufficient to science.
There is no thing called "science" that finds answers. There are scientists who can form hypotheses about the universe they can see and perceive and check whether they are consistent with what they can see and perceive.
We are mostly ants on a balloon:
https://www.scientificamerican.com/article/does-the-fact-tha...
We do not know where the balloon came from.
That’s equivalent to suggesting people can’t do chess. Semantically it may be accurate, but it’s intentionally obtuse.
Language doesn’t actually work that way.
Anyway, science isn’t experiments and building hypothesis etc. That’s part of the process, but really quite small pieces of a greater whole. It’s the long processes of generations refining and testing earlier ideas that finds truth.
What is supposed to be reproducible is the act of collecting and processing data to ensure that your conclusion isn't based on error, falsehood, or happenstance. What he is promoting is a basic misunderstanding of both science and logic.
People with preconceived anti science attitudes do this all the time. They face you down at high noon in their fancy duds, six guns ready at their hips sure of themselves and ready to kill and draw pearl handled.... water pistols.
They went looking for the correct answer to satisfy their religion not a commitment to truth and found cheaply manufactured baubles they are sure are deadly weapons because the very skills that would enable them to see it clearly would prevent them from looking for such easy answers in the first place.
It is very arrogant of any ideology to pretend it can explain things it can't.