I don’t know about your claim that they are inherently unsafe. With fixed wheels, three-wheelers are prone to tipping. I agree with that. With this model they are claiming that it “leans.” It makes sense to me with a clever enough suspension they could solve that issue.
I don’t have a WSJ subscription so I couldn’t read the article. One thing I haven’t seen discussed is being house trapped. If you purchased a house before everything got crazy and refinanced with a sub 3 interest rate you are effectively trapped in your house now. You would need to make so much more money to buy your same house now. It would be a stupid financial decision to move for a job. What you end up with a stupid long commutes.