If it was merely that, why is it being presented to congress? How would the US military not know the origin of a cruise missile they are tracking? How many cruise missiles out there can take a broadside from a hellfire at 1000mph and continue on its direction of travel?

The information you claim to want isn't accessible to you. The US government has "platforms" with vast arrays of sensors and data collection capability - redundant, multiplicative platforms measuring things you and I might not even know about - and they use this data to get a pretty good idea of what they're looking at.

You're seeing a grainy video for a reason. It would be trivial for you to have every piece of data related to an incident but if you did, that might be problematic for multiple reasons, one of them being it would expose capability. Usually, multi-million dollar missiles aren't used on unknown targets with unknown capabilities for unknown reasons. Thus, more information is required.

So, where are we left? With you demanding inaccessible information to draw a conclusion. Given that you can't have it, you're essentially just throwing your hands up and saying "well, I guess we can't know". Fine, but untrue, as we can simply demand to know.

That is what people are doing. If you're at all concerned by any of this, you should be in this camp as well.

Regarding "distraction", how is this a "good" distraction if it's not a widely credibly held position and can clearly damage your reputation? This is just a nonsense idea. There's no reason to believe these people are lying.