Model Y was way ahead of the pack when it first came out, with only window dressing improvements since. Now there are lots of choices, some better for less money. Elon's sales gimmicks are an attempt to keep Tesla in the news, so we won't notice Tesla's lineup is aging poorly. When the Chinese EV's get here, the Y will be well on it's way to becoming just a footnote in history. While the world passes the Model Y by, I expect Musk to just keep putting lipstick on the pig.
I agree that Chinese EV's have surpassed Tesla, but Uas will never allow them do to the implications it would have on jobs, as the big three will all go bankrupt.