It seems logical that hashrate will fall if price of bitcoin is as well. Profitability and price goes hand in hand.
first there has to be at least a couple of days from the actual drop before the miners decide to change their mind and shut down their miners so that hashrate drops. and price drop is not even 24 hours yet. it is about 12 hours if I am not mistaken that price dropped!
not to mention that if you look at the hashrate chart you can clearly see that there actually was a rise in the past 24 hours!!!