What I was trying to get across in my comment is that the military, in general, does not care in the slightest about those "points". They will not release anything unless specifically and explicitly forced to and needless to say they have not been. They are quite happy to watch other governments, or even their own government, waste millions of dollars looking in the wrong place. Correcting them is not in their mission statement and, frankly, not even part of their thinking.
The whole area is one of the most densely packed geopolitical zones in the world. It beggars belief that multiple parties did not observe, in detail, the whole thing. It was not a stealth aircraft. Fucking Australia probably saw it. I am quite certain Singapore did.
Like I said, we'll probably hear all about it in a few decades.