That indeed is a very good question.
Let me flip that around and ask this: So why exactly did Tesla not raise capital in Q1 or even better in 2018?
Tesla raised capital every single year - except 2018!
Here is summary, including Equity and Debt, but NOT any secured debt or loans, for TSLA and SCTY combined (detailed table at the end):
View attachment 402036
So what happened in 2018? Why not raise in 2018 especially now that we know that the firm was 'single digit weeks' away from bankruptcy?
One theory is EM was just overly optimistic and he did not foresee the demand crash and cash crunch.
There are other theories that Tesla is somehow blocked from raising capital. The block could be any of
a) Lack of investor appetite from Buy side, especially bond market, developed a sour feeling given how Musk pumped/handled the last 1.8 bil raise
b) Lack of support from Sell side
c) Regulatory (SEC) block - or just mere lack of cooperation to approve deals
In my mind there were certainly attempts to raise capital, there were lots of loose data points. But the most notable is Semi/Roadster unveil. Musk could have easily said we need to raise capital to build the manufacturing capcity for these. But instead he was rallying the single piece Semi around for deposit chump change.
So if we don't know why Tesla didn't raise capital in Q1 or earlier. We still don't know what might (continue to) block it.
Finally now in Q1 10-Q doc we see the mention of "we may choose to seek alternative financing sources". This to me very much reads like the Silverlake deal that SCTY did, which basically marked the beginning of the end.
Having said all that. Liquidity or lack of only changes the timeline somewhat. Ultimately the unwinding, if at all, would happen fundamentally due to demand. Lots of people are getting carried away with "management guidance". Note that all of the guidance is contingent on the assumption that Tesla will sell through everything they intend to produce at current prices.
Full capital raise table:
View attachment 402041