There is a lot of talk about institutional money coming into btc. Does anybody think they wana buy it for 20k? They have money and resources to make a dump. If we want mass adoption and big money flowing in we have to expect things like this.
They will not be buying Bitcoin because it is messy, unregulated and highly technical business as things are currently, and the exchanges are scam purpoteurs or fall victims of scams more often than not. This is why the derivative instruments have been introduced, and this is why that the institutional money will be buying future contracts (for the price of bitcoin).
The derivative instruments don't influence the price directly, but rather they offer means to gain (or lose) as base instrument price changes.
So I am not so sure if we, as a community, should be afraid of institutional money, at least for now.