You seem to be talking about civilian reports of UFOs. Those are irrelevant in this report. Sure, those happen and turn out to be planes, but civilian mistakes

You seem to be talking about civilian reports of UFOs. Those are irrelevant in this report. Sure, those happen and turn out to be planes, but civilian mistakes are not the scope of this report. It is a report about incidents logged by military and intelligence agencies. There is no need for a "normal plane" category" because they already know if something is a normal civilian or commercial plane based on easily obtainable data from flight plans airport logs etc, along with their own much better tracking capabilities and sensors. Those resources will be able to identify if something is a normal plane long before the incident needs to be analyzed by an intelligence task force.