Seems like this thread has circled back on itself.
Saying "We don't know what they are, but we're pretty positive they're of earth" wouldn't be so hard, would it? I agree the likeliest option by far is the UAP are not extraterrestrial, but ruling it out because it seems implausible seems as unscientific and dumb as ruling out that a foreign power has greatly surpassed our own technology and is flaunting it in our face in our own back yard. Both are very unlikely and neither should be ruled out until the facts allow you to.
At the end of the day the bosses are repeating what their advisors and SMEs tell them. And if they're anything like most engineers they shy away from certainty in either direction and speak in terms of risk, uncertainty, and likelihood. And since they haven't told The Boss that they're definitively not aliens (or the other way) The Boss isn't going to start making definitive statements.
No one's saying rule it out. We're just saying that it doesn't need equal billing with far more likely answers.
Several years ago I was watching a documentary on the sinking of the Edmund Fitzgerald (With a load of iron ore twenty-six thousand tons more / Than the Edmund Fitzgerald weighed empty) and in the final 15min they presented 3 scenarios that each took 5min to propose how she sank:
- Waves opened a hatch and water came in
- Waves drove the bow under and the ship took on water
- Aliens
1 and 2 are pretty believable and likely scenarios that, without a smoking gun proving one or the other, serious naval architects can discuss and debate. These scenarios are worth the air time. 3 isnt worth discussing for 5sec let alone 5min because the likelihood (ie %) is so low compared to the other two.
Or maybe another scenario, if you were betting your paycheck on what's causing UAPs, how much would you put on aliens?