Insects will change their behaviors more based on temps and barometric reason than others. We've had nights where recording was extemely difficult due to their (insects and crickets) overwhelming activity. Then we've had nights where they were active until the weather changed overnight. In either case, we've had nights with no observable BF activity, and nights with much activity with different insect noises.
As for people reporting that the woods went silent during an encounter, it's a medically established phenomenon that sudden bursts of adrenaline in a person's system can dampen the auditory system, and can create brief periods confusion and disorientation. There's plenty out on the net that talks about and goes into details about this.
As for drawing a conclusion that ...
Once again, people offer 2 choices of "how something must be" trying to give and "either / or" option, but let's get realistic: there could be a dozen reasons why something is or isn't a certain way and we just don't know what they are. Offering 2 choices and saying it's gotta be one or the other is overly simplistic.