Not sure i understand why its still a big deal for people not to believe in bitcoin. I'd rather anyone who doesn't naturally exits (sells) and this is the markets way of weeding them out and letting those who wanted to get in to do so.
Also i would associate the drop more with Charlie lee confirming the news that bitcoin exchanges are being banned.
Sure, the drop from 4400 to 4000 two days ago. But Btc recovered today. After the JPmorgan dude spoke it fell almost 300$ today.