I don't think it's an unreasonable hypothesis. At this point we know that the government has been cataloging evidence of advanced craft in the air and ocean that behave intelligently and are far beyond the capabilities of any major world power. A small portion of that evidence has been released to the public and officials with clearance (including elected officials) have stated that the evidence they've seen is significant. Doesn't mean its aliens but unless there is some elaborate conspiracy there is compelling evidence of technology in our planet that violates our current understanding of physics.
Loeb is connecting dots and hypothesizing that there is a connection between that phenomena and extrasolar objects. It's not a completely unreasonable theory and I think it's worth examination.
> At this point we know that the government has been cataloging evidence of advanced craft in the air and ocean that behave intelligently and are far beyond the capabilities of any major world power.
We do not know this to be true. We know the government has told us these things have been cataloged and observed. We barely know anything outside of (dis?)information that’s been slowly drip fed through small congressional committees and a bizarrely eccentric cadre of former DIA agents who have spent the last five years cultivating a personality cult and a subculture weirdly reminiscent of Q-Anon.
“The government is lying” is certainly not an exotic explanation for an unexplained phenomenon reported by a group of intelligence officers from the military-industrial complex.
It's possible that this is government disinformation but that's an extraordinary claim. It requires a conspiracy that's far more elaborate than the theory that the moon landing was faked. The Brazilian[0], Chilean[1], French[2], Soviet[3] and many other governments have or had UFO programs and have disclosed reports and evidence. Additionally there have been mass sightings without clear explanations witnessed by large groups of people, for example the Tuscany football stadium incident witnessed by ~10,000 spectators[4] and the Ariel School UFO incident[5].
That's not to say these are aliens, there are certainly other possible explanations however none of them are very good and they don't dismiss the possibility that these are non human intelligent beings.
Loeb is connecting dots and hypothesizing that there is a connection between that phenomena and extrasolar objects. It's not a completely unreasonable theory and I think it's worth examination.