In grad school in astronomy, there was a fellow grad student who was extremely excited after a night's observations that he'd discovered something remarkable -- it was a long hoped for distant galaxy that appeared in his images that night, and had all the right spectral signatures because it appeared in different filters, different exposures, and you could see it there in the image files, raw. Turned out, it was nois…
Frankly, I think the reality is even less interesting than that. US military aviators are trained to be proficient systems operators, but typically (and, I want to stress, very reasonably) have little or no education in EM/EO theory, and don't always understand the assumptions that engineers baked into these systems to optimize them for their primary use cases (which, in the case of targeting pods, is identification…
What about when the radar data, the pilot's own eyes, and the targeting pod data all complement each other? What about when the Navy has a patent for craft that can fly the way these 3 data sources described? What about when the "unidentified" craft is coming from San Clemente Island (a private Navy island near the training theater)? Why did the most compelling event occur during a Navy training mission where the purpose was to test new radar equipment?
I could dismiss any one, maybe even two of these, as a coincidence. But trying to write off all of these simultaneous events as errors and coincidences, that's harder to believe than the conspiracy theory. It seems obvious, that in at least one of these reports, it is an undisclosed Navy craft.