Okay. All these people throughout the years, including Ronald Reagan, saw a craft merely because they thought they were supposed to see them.
If one is seen, then it is easily sighted.
Pagan gods were usually made of stone or wood and could not move themselves, so, yes, they were easily sighted. You can still see them today.
They say they saw them. Just like people in the past saw pagan gods. There is most likely a correlation.