Yes, indeed. This appears to be another set of hedge fund short selling attacks often seen during the first ninety minutes of trading. We usually see them on Tuesdays, but those today are on greater volume. They trigger cascades through tight stop loss limits set by weak longs. The initiators of the attacks can leisurely cover at a profit throughout the day or perhaps another day.
The weak longs are short term traders, many of them day traders. As more and more affluent people become Model S owners, I suspect many of them also become strong long term shareholders due to great satisfaction with the product. They buy from the short sellers and the weak longs. They are not usually on margin, and despite owning thousands of shares of TSLA, it is not likely a majority of their assets. They are confident the company will be a success and can ignore price swings.
As the base of strong buy & hold shareholders grows, short selling attacks will become less and less successful. For a while pundits and analysts will continue to be puzzled by a share price seemingly not justified by current fundamentals. It will be supported by rock solid shareholders believing in the potential of the company eventually bearing bountiful fruit. If they are not selling, then any dips would be brief and the ultimate gains unlimited.