Because the conclusions of quantum theory are counterintuitive, some scientists hold different views on the theory. Although they try to strictly show that the assertion of quantum theory is imprecise (that is, they try to strictly falsify it), they find that its error is usually reasonable. within the accepted statistical range. These results of quantum theory differ from those of competing theories, and it seems reasonable to accept quantum theory.
The principle that if an attempt is made to strictly falsify a theory, but it has stood all the tests, then it should be accepted is most helpful in justifying the above reasoning.