I suspect it is a joke, hoax or fraud.
I've never had a twitter account, because I feel the venue is for twits like Elon Musk.
1 : a silly annoying person : fool
As near as I can tell, Elon Musk hasn't posted lately. I wouldn't be surprised if the board of directors, his lawyer and his psychiatrists are keeping Elon Musk away from twitter and his computer. It wouldn't surprise me if he is in some posh discrete psychiatric ward and/or on heavy psychiatric meds since his slanderous twitter rampage against the cave rescue hero, and demeaning of other rescuers, etc.
Elon Musk was demeaning, condescending and narcissistic toward other rescuers; by trying to portray the rescue as easy as the water being so low that perhaps the boys could walk out. It shows his disconnect from reality, and his sociopathic nature and abusive nature towards others.
Some details of the difficulties of the cave rescue are now appearing in the news.
It's doubtful there is much video documentation of the rescue, as the priority would be the rescue and some privacy discretion to those that were being rescued. Elon Musk is so delusional that he seems to expect the video to be the top priority during a rescue. That's because he is used to conducting greedy narcissistic publicity stunts.
Tesla and Elon Musk are being roasted; probably because of his slanderous tirade against the cave rescuers.