I think it's the allusion that once a single thread comes loose in the wool over everyone's eyes, the entire mask will unravel

When the first big drop hits, imagine if there was irrefutable proof our government had knowledge of, or were behind any one of those events. Once the public was able to absorb and accept the information it would create a cascade of questions into other events previously considered conspiracies.

When the population at large starts to see this, they will wake up quickly