It's fine if they are going to sell only if they really need some extra cash for their own purpose but don't ever try to sell all the bitcoin that you had.
they will never stop its all part of trading, but there is a possibility of the habit minimizing should prices of bitcoin surge further making it expensive
to own a bitcoin should you choose to sell what you already have.
I really hate panic selling, there's no unity between the users and traders, when this panic selling will be stopped for sure we are going to see the price to fly up to the moon.
To be frank panic selling is usually among the small traders who do it for some pocket money not the whales who are the real price movers