I think confusions of Governments in terms of regulations. Different ICOs have also failed to maintain their popularity. Besides, ban on crypto from china, restrictions from Korea on Bitcoin played as catalyst, I think.
I think that if China government when they turn ICOs and crytpo exchanges closed, did not effect that bitcoin price too much, i think a temporary panic was there, so Korea contribution is nothing as compare to China therefore i do not think that it will effect the bitcoin price too much, in fact in current time a lot of negative news are there, which are making the investors a little more cautious and investing their money in bitcoin with intense care, therefore the demand of bitcoin is low and the price is also dumping a little but hope very soon the condition will come to normal.