Presumably if LIGO fell victim to a statistical fluke of noise in the data because they underestimated the likelihood of such a fluke then those flukes should h

Presumably if LIGO fell victim to a statistical fluke of noise in the data because they underestimated the likelihood of such a fluke then those flukes should have happened during the decades when they were running multiple detectors at lower sensitivity. Is it possible that the probability of these flukes occurring sits just within the window of "likely enough to happen and still be mistaken for a true signal" and "not so likely that it would have happened more than once in the last 10 years". My question is, are the Danish considering the fact that this kind of noise will occur regardless of the sensitivity of the detectors?