Full blown correction down to below 400 (i.e. sub 400 for daily average, not just a 1 hour dip to 380 or so) seems unlikely right now, given the market's reaction whenever we fell to that point.
he didn't say that.
he did say that if some of loaded clients needs money or forces loaded to sell their bitcoin, in the execs of 10 000 BTC, it will take the price down to $400. That does not mean that the price will stay at $400.
And, as I said, I see little evidence for a trend that takes us to sub 400 and makes us stay there.