it is proof that rich people or whale still has power to influence or manipulate bitcoin price. I think is a good chance for other rich people to buy btc at lower price. He is not the only one rich person in this world, maybe if other rich people see opportunity to earn profit in bitcoin investment then they will get involved in it.
They don't have that kind of power directly, and still I don't think that Musk's intention of selling bitcoin was to create a scene. We don't know about the actual financial health of his company, but that could be a reason.
Bitcoin circulation is too widespread,Elon musk can only influence his followers sentimentally, as can other bitcoin whales.
Or we really don't know if Elon Musk has sold his bitcoin. There are a lot of speculations that he didn't, but we will know the truth once they released their financial statement and open it to the public.
But so far though, it seems the news has settled down a bit, we've seen strong showing of price and recovery about $26k already. And if by chance we hit $27k or higher, then we will forget about this FUD on how Elon Musk sells their BTC or not.