Earlier quoted context omitted.
Yeah "dumping" a winning trade isn't dumping. It's taking profits to move onto other investments.
Why would you completely exit a winning trade that you have more insight into than most people since you’re the sole supplier of the primary component in the thing if you thought it was going to have a higher ROI than other investments? … you wouldn’t.
Or the most likely case, they're tired of Elon's schtick and they can take their technology elsewhere.