Disclosing things that the military deemed anomalous reveals a lot about military capabilities. Simple things like where groups were, but… imagine you were an adversary doing a drone exercise and you see the US reporting it as UFOs. That would tell you a lot about limitations in US sensors AND that US drone tech was so far behind that they concluded it wasn’t a drone. The military will always err on the side of not oversharing.
So of course the military isn’t going to disclose. If we want to take this seriously, we need a non-military org that will monitor and report that is designed from the ground up for transparency. Seems like something a scientific agency like NASA could be well suited for