I am not sure what they saw. Do you? After being "thoroughly-investigated", what was the answer - "UNKNOWN". There is no real data, no photographs, no evidence of anything other than what the people supposedly saw. If this is the BEST case that can be presented to demonstrate UFO reports require "Scientific investigation" then it is sorely lacking.

UFO groups have been "investigating" UFO reports for 50+ years now and what have they produced? Nothing. Just a bunch of reports of "unexplained" events that rely mainly on reports by eyewitnesses who may or may not accurately report what they saw. I think many scientists are not interested in chasing phantoms and would rather spend their funds on more interesting aspects such as the real universe we live in that can be studied scientifically. You might as well ask them to look for elves, fairies, bigfoot, the loch ness monster, etc.

If UFOs represented actual high technology craft unknown to science, you would think somebody, somewhere, would gather some more interesting information/factual data than just anecdotal stories with claims that can not be verified. Isn't it interesting that birders can identify rare species of birds by gather factual information or amateur astronomers can monitor the skies for unusual events but UFO groups can not do the same? It says a lot about these UFO reports, which by most analysis are full of errors (90-95% are usually found to be errors of observation/perception!).

If you want to provide a case that has some facts to be analyzed or data that can quantified, then it could be worth examining. Unfortunately, the case being presented has very little of that.