Earlier quoted context omitted.
That's because Musk personally oversaw the design of the Cybertruck and likely rejected all pleas to make sensible decisions. Musk did not design the other models. Just like how SpaceX and Tesla and Twitter seem like they have three different CEOs; the degree of their competency is inversely proportional to the amount of day-to-day feedback Musk has into their operations.
Musk's superpower is cult-building. His fatal flaw is that he has no idea that is his superpower.
He actually shares a lot in common with his former(?) friend Kanye West. Both crave the validation of others, but when they get it, instead of being satisfied, they become even more needy and insecure. So they pursue anything except what they're actually good at because then if they fail at the thing people actually value them for, it would be too painful. And they surround themselves with yes men who tell them how great they are. All these factors make them more and more isolated and insecure. Combine that with drugs, alcohol, and sex and you have a toxic brew.
You may say this armchair analysis is unfair, but both these men have been so candid, veiled by the thinnest layer of irony, that it's impossible not to see how fragile they are.