I also think that a lot of anti-Musk sentiment has already been priced in. While a Twitter bankruptcy would absolutely have some further impact on that sentiment, it doesn't seem immediately obvious that it would wipeout all of Musk's fanatical support.
Given that, an immediate drop to 13% of Tesla's current value seems like a significant overestimate if Tesla keeps hitting sales and production targets. If Twitter bankruptcy accompanies a significant reduction in Tesla sales, I could see a drop of that size or larger, but not from a Twitter bankruptcy alone.
