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 'a theory should not be considered plausible until it has been attempted to be strictly falsified' is most helpful in justifying the above reasoning.