In my experience, the fix doesn't work at all. Playing on my preferred settings (Deity, Raging Barbarians), I see no change. I didn't notice anything locally, but when I got a 'civ destroyed' message on turn 31, I checked it out... and yeah, things are exactly the same as last time.
I didn't save/load or anything either; this was a fresh install of 1.6 straight off the download, first game.
Raging barbarians increase the weird spawn, since there are more barbs in the world. I've turned it on, it was a disaster. Then I turned it off, and it was more tolerable for everybody.