I believe it will be back to normal and since there is no relevant news that I have read on [2]why the price fall that big, then I would assume it's just normal and just focus on the future to come. As long as we are monitoring the price and the relevant news, we can always make a decision that is based on our evaluation and I know we differ on that matter.
[1] Not at all. There will always be price decrease that's going to happen. Nothing especial about it this time. If the price goes back to $750 like the previous happening with PBoC, that's kind of alarming, but not really. You shouldn't be alarmed about the price at all since you know that we will eventually pick up later. What you should be alarmed of is the news about bitcoins, but at the moment, there's nothing alarming at all.
[2] Probably some panic sellers are the reason behind this price decrease. Panic sellers always find a lame reason to panic sell. "Oh, I've read a post about bitcoin ETF not getting accepted. I don't even know if it's reliable/credible, but I'm still selling my coins."