It is quite common in bitcoin so don't expect it to be removed from the system. We can say that the volatility of bitcoins was still high since with the sudden surge of bitcoin price unless the price would constantly increase and decrease simultaneously with a low price adjustments
The reason why we are seeing this kind of a price change in a year is the fact that bitcoin and crypto currencies as a whole is volatile. Without it, I think there would be a price change like this, not because of the volatility of it but because of the reason that without it, I think there would be no investors that would be interested in it.