Well, for me the downtrend of Bitcoin lately is due to a lot of negative news about it, a lot of Bitcoin holders panic sell that's why the value keeps on going down.
First you need to know that whats so ever goes up comes down. it has just faced the worst it will face. lets expect up trends from now. am so happy it went down because it gave many opportunity to jump into it. Bitcoin is here to stay.
That is why it Bitcoin has volatile, market will react on anything of news that related to. I would not blame people who sold out their coins when the situation fall are dip. It's their money, they should have control about how and when to save and spent it.
I wouldn't agree to said this is a correction, because this has been happened few years ago that Bitcoin's price always fall at the beginning of the year, I think this is the manipulation of the some exchange board or big investor, to makes people to sell their coins panic in cheap price, then they will re-stock and increasing price of it to re-selling back to the market. This is a business, isn't.