It is still a small company. It the size of Mazda just with way more hype and more funding. It is still consistent with the idea that he stole the company and just turned it into his plaything, funded primarily with other people's money.
Almost no companies went broke in the last decade or so. Only the most incompetent companies have really failed recently, with the occasional bank failure here and there. But that will change eventually. All frauds eventually go bust. And if Tesla is one of them, it will happen sooner or later.