OP is clearly wrong, the hashrate didn't really "dip", it has stabilized at around 310-315 PHS which is a jump from 280-290 a few weeks back. Next diff will be around 0%, after that we will see another 0% diff, followed by about 10% increase due to btc price recovering and more people buying S5's and SP20's.
IF the price recovers, which I hope it will