Tesla has improved the build quality on the Model 3 vastly in the last few years, but there are a lot of wrinkles yet to be ironed out. This is more or less the story with the other products too. The cars suffer from paint issues, panel gaps, etc., but this incident perhaps tops them all.
In the U.K., a brand new Tesla Model 3’s steering wheel has fallen off while it was in motion. Quality has never been the company’s strongest suit, but this is outrageous and life-threatening.