absolutely
it doesn't even really matter if it's legitimate regarding the concern. if holders in korea panic and believe they may not be able to sell due to a ban they will run as it seems a good idea to get out before everyone else. in a worst case scenario they are correct.
as for the manipulation comment. if it is, someone is really going to a lot of trouble to cover their tracks. i was watching last night and only a handful of trades were major players like 50 coins etc. most were all fractionals and under .5 which is what i would expect to see from panicking home investors
i'm watching 10k and if that breaks 8k to see if we have technical support. if both of those fail you start wondering if the long term trend line will stay intact