Elon also publically told everyone to never trade on margin. WS knows exactly what it takes to harvest those shares, and will pile on the FUD to get there whenever they can, and take advantage of anything they can. And even apart from that time when he sold shares, the stock price had rocketed up and down many many times before, especially in the early days, when no one at Tesla was making any inflammatory comments publicly or selling any shares.
It is financially pointless (but natural, I guess) for anyone who trades in options to complain about others when their gambles crash and burn. They have only themselves to blame. People aren't FORCED to buy more than they can afford. They choose to play a game they have no control over.
Taking personal responsibility is wise; that helps us learn and grow. Being wise enough to see what is in our control, and what is not, and acting accordingly, is even better. It's not easy, though.