Well, yeah this really really isn't good. This outcome is the worst of anything that couldve happened, but it also was absurdly, stupidly, close, if the wind had gusted differently, or if trump moved his head differently while speaking, we would be having a very different conversation.
If you make a great, almost certainly deadly, swat at a hornet, but it miraculously escapes and stings you in the face, acknowledging that it was a good try at least is fair.
some large commercial dna testing companies share their databases with law enforcement, and additionally you really don't need a close match to start identifying someone, 5th cousin type thing etc. heres an good video on the issue.