This is a typical thing in any market. A panic sell is quite normal, and a recovery usually always follows. You'll always see action from panic trading, that's where the money is to be made for the level minded players.
It's surely is a normal move upon seeing those people that are satisfied with the current price. But when someone starts to do so, the price will going to keep on being down and that's the start of others to do the same thing because they doesn't want to be late in able to cover some profit.
I do not think that trading bitcoin is the same as trading forex. I think no margin call or pip in bitcoin trading. Panic selling is fine as long as we can get profit. We do not have to worry if bitcoin price down because we are see that bitcoin price will always rise, aren't we. So do not do panic selling if we afraid to lose money.
Usually when people people they sell their bitcoins a a lower price and whales will enter to buy cheap bitcoins. Whatever happen we should not panic but it can only be possible if we know and understand what we are doing, there are a lot of traders and investors but only few of them are doing their job that's why when there's hype and FUD, they are easily affected.
Weak hands can be easily shaken by some issues which may, in fact, unreliable based on its sources, unfortunately, those who own weak hands are many among the professional. As proven by so many traders that trading with emotional will drive to bankruptcy, it just makes sense, those FUDers could emotionally affect the perspective of each traders that could make them control the whole market by spreading intimidating words.