I wouldn't get excited about this #2 difficulty -- it looks to be basically "flat".
If the DJIA (stock market) gained 5 days in a row -- up 10 the first day, up 5 the 2nd, up 7 the third, up 12 the fourth, and up 9 the fifth -- I wouldn't exactly be selling all my stock into the "rally". (For those who aren't familiar with the DOW -- a rise in the single or low double-digits is practically flat)
Now if it gained several hundred points for a few days, everyone would expect a correction and the first person to sell would make money (he could re-buy at a lower price, even if he wanted to hold)
So technically yes, we have "2 difficulty drops in a row", but come on! I almost wish this one was an increase of 20,000 rather than a decrease of 40,000. Because it really doesn't matter as far as mining income is concerned -- it's just psychological.