I don’t know if you watched the hearing, but nothing in this article was inconsistent with what was presented in the hearing. There was some backstory information presented, the account of Lt Alex Dietrich for example, but even that was completely within the context of what has been included in the testimony to Congress.
But no actual physical evidence is -- pardon the repetition -- evident. Only hearsay about it.
When it comes to human perception, we are faulty creatures. Witnesses to the same event often tell "versions" of what was seen or experienced. So true in policing, for example.
To put this in a sad but very human perspective, remember the lads who all killed themselves for the Hale-Bopp?
"Heaven's Gate is still one of the most notorious cults of the 20th century – not to mention one of the most recognizable. In March 1997, America was shook by the strange story that included mass suicide, wild public-access-style videos, an obsession with U.F.O.s and, in true late-Nineties fashion, tracksuits and matching Nikes. They also had a new recruitment tool: the Internet."
Source: https://www.rollingstone.com/feature/heavens-gate-20-years-later-10-things-you-didnt-know-114563/
I am not saying that military professional said something false. What they reported was their perception, and how they interpreted it. Even so and NOT to make fun of them, what is "unidentified" is unidentified until identified, and what is "unexplained" remains until it is explained and credibly sourced.
People see things they cannot explain. Very often. And then an explanation is mounted, even if not proved tangibly. I mean only that skepticism is warranted, for all the "squirrel" reasons about which we have previously commented. Best wishes.