We are all here statisticians.
Look at the population sizes and probabilities of the demographics.
As JustAnotherOldGuy points out, there are a few cyber coin exchanges and a shit load of headcount that would like to grab some play dough.
Given the small number of players inside the exchange perimeters as compared to the billions who are on the outside, trying to get in, and given that ALL players have the same goddam hardware and software and mental capabilities, the odds are that many people outside the exchange inner circle are very much more savvy than the people guarding the gates of the exchanges.
Hunnert dollas to a hole in a donut says the exchange took advantage of recent "GOVERNMENTS DEMAND BACKDOORS" to cash out and blame it on the backdoor buzzword of the day.
Early adopters of Internet shit are batshit crazy.