His challenge to investors that if they cannot stand the volatility to go elsewhere, appeared to be associated with a rapid fall in price. The gurus out there said that he laid down a bad challenge, which then 'caused' investors to dump stock. This may not be true at all.
The whole of Wall Street took a dive because of fears of the Iran nuclear deal being torn up by Trump - and down went TSLA shares too. So - it may not be Musk causing a problem.
Right - the next issue is that if fears of the Iran deal going sour is what has Wall Street nervous, it is reasonable to infer that TSLA shares would naturally fall in line and go south too.
Anybody who is bullish about any stock in the markets around this time is living on hope and greed. Closer to May 12, if the Iran deal really goes belly up expect mayhem in the stock indices around the globe. But there are other worries on Wall Street - namely the 10 Year yield, a rapidly escalating trade war on China as Trump is expected to block to major communications providers. So there is lots of 'bad news' ahead for the American economy, which is like to affect markets globally. Sorry to be bringer facts which give a gloomy outlook.
This does not mean that people should not go long on TSLA. People can do as they want. It's a free country! I predict nothing. If the markets rally tomorrow morning - then fine.
Elon Musk will be reading http://www.uscourts.gov/services-forms/bankruptcy/bankruptcy-basics/chapter-11-bankruptcy-basics long before that huge ride up to new highs.