One must be answered. Statistics is about extracting information from experimental data when outcomes are not perfectly predictable, and about designing experiments to collect the data efficiently. We use sampled data to describe the variability of unobserved outcomes. No evidence of risk does not mean there is evidence of no risk. Further, if it is reported that a nuclear power plant is safe, this does not mean that there is no risk, only that the risk is negligible.
Probability is the modelling of randomness.
It counters false intuition. We might expect that the test would give good evidence for the defect if it shows positive. A new manufacturing method should increase the items that pass a stringent test.