I would put weight on this if it were to re-occur. The navy has done lots and lots and lots and lots of drills since 2004. Nothing like this has magically re-appeared.
'In September 2019, a Pentagon spokeswoman confirmed that the released videos were made by naval aviators, and that they are "part of a larger issue of an increased number of training range incursions by unidentified aerial phenomena in recent years".'
If we only want to go off of verified sources, of course it's all classified since we can only trust the military to provide us information on this as far as veracity goes. Based on the official, released, declassified videos from the Pentagon, it happened in 2004, 2014, and 2015 AT LEAST.
I totally understand the skepticism and want to reiterate that I am not nor do I want to be a "UFO guy". It is also especially hard to prove, because there are so many outs. One could ask for photos, and then if photos are provided, they're photoshopped/doctored/not high quality enough (which is the case 99.99999999% of the time), and then if they're provided from the government then it's not real because it's a one-off situation e.g. lone wolf, and if there's multiple then it's a psyop/disinformation, and then if they provide a witness or a whistleblower then they're crazy and a nutjob, but if they provide multiple it's just part of the conspiracy, etc etc.