The important thing to consider was there was just as many buyers at that big dip as there was selling at that point; reason the dip only lasted moments. People played the dip and made a 1000. per coin in a matter of an hour. Until the orange mountain (right side of depth chart) is a lot bigger than the green mountain (left side of the depth chart) for a longer period of time nobody really has to worry.
Those were most likely sitting GTC Orders that got filled on the sweep down. AGAIN I would stay back for awhile. JMO.