Eh, Tesla had a relatively normal growth company valuation for a while when they were growing strongly. The problem is the stock still hasn't compressed the multiple back down as growth stagnated... because the market swapped out "valuation based growth" for "call option on robotaxi success" at the blink of an eye.
The truly terrifying thing is that someone could short the Musk companies, and with one bullet can cause them to drop 50-90% right away (thanks to meme-ness). And they are valued so high that such a person could make billions overnight, maybe 10s of billions. Terrifying to be Must or anyone that shares a car or plane with him.