Panic selling will be their big loss.
Exactly, panic means poor exchange of value occurs. People sell at a price forced not balanced by buyers in a normal market. So long as you believe bitcoin can sustain a normal market long term even medium term then the rapid fall in a price is more easily corrected then a gradual decline for example.
On a chart you would observe rapid selling, panic or forced stop loss dumping of bitcoin by a larger change in price vs actual volume recorded. Where volume is low on a chart, that price is more easily surpassed then when a great many observed this price exchanged bitcoin and had time to consider a hold or sell.
The more people involved in a certain price point the more significant the price becomes long term. This basic idea is how its profitable to buy into a lower price that fell rapidly. Various indicators try to highlight these scenarios.
Indicators I like that include volume in comparison would be OBV and MFI. Thats On Balance Volume and Money Flow, MF is similar to RSI indicator I believe