It has been already analyzed in very fine detail, what you mention is an obvious double/triple check. If you have a sample that changes whole global narrative,

It has been already analyzed in very fine detail, what you mention is an obvious double/triple check. If you have a sample that changes whole global narrative, you can make enough detailed tests on it to have statistical chance of error close to 0. Too bad they don't have earlier samples, we could possibly find it way earlier. It wasn't October 2019, actually Italy had September 2019! A few countries had it back-identified before official Wuhan ones. France had December. Its very well possible that Covid originated elsewhere, but that's another topic.