If insolvency were a concern the stock would be much lower. Seems like more fud by journalists who want to see Tesla fail.
TSLA is down 28% this month. How much lower would it have to go before you were convinced that the market is "actually" worried about insolvency?
And frankly, even if it weren't down, your position would still make no sense. People trade bonds on the expectation of whether or not they'll be paid back. Are you trying to claim stock prices represent what the market really thinks, but bond prices are just posturing?
Credit rating agencies have defined rules and many institutions have policies on what mix of bonds they have. Investors do over-react to short term news.
By the way, the stock is much lower. It's down over 15% since Monday. You can blame general stock market volatility for some of that, but even so it's a much larger drop than the overall market experienced.
If you have to pretend that a Tesla shorter is a journalist you should consider that maybe your world view has some problems.
Debt markets are tightening up and junk companies will not survive. They need to raise north a billion this year. It’s reasonable to be a bear, unfortunately.
If you like Tesla cars, the best investment in them is to see which automaker is best positioned to pick up what’s left.