It's worthwhile looking again at Mick West's careful analysis of the USS Omaha clip.
1; the object is descending slowly and smoothly, with no sudden moves. This can only be seen if you stabilise the sea and the object together. So this object does
not display any wild, physics-breaking manoeuvres- it just slowly loses altitude.
2; The clip has a six minute gap in the middle, during which it seems to do nothing except lose altitude. Maybe this six minute hiatus was also filmed, but it probably wasn't, since this clip was made by someone filming the display using a hand-held camera, probably on a 'phone. We can safely assume that nothing interesting happened in that six minutes.
3; The object disappears at the horizon, so was at least 10 miles away, given the height of the SAFIRE sensor above the sea surface (about 70 feet). This object was a long way away.
4; the object disappears in exactly the way a glare from a glowing object would disappear - so it was a warm or hot object seen in infra-red, such as a distant plane or flare.
West has this to say:
it could be a balloon flare, or a parachute flare; it could be a drone - it could be a Chinese drone; it could be a very distant aircraft sinking down over the horizon, maybe an alien spaceship doing some boring flying.
We don't have enough information to discriminate between these options. Perhaps the US Navy doesn't have enough information to discriminate between these options either, or perhaps they are not willing or able to give us that information. But the Alien/extradimensional explanation is far from being the only one on the table, given our current state of knowledge.