Because Faery wasn't changed?
Let's look at the non-racial changes for a second. Re-examining explore formulas: okay. Removes relative KD NW protection after a certain hostility level. Good. Adds war button to both KDs when they both hit relations cap, regardless of size. Good. WW now give bonus land or honor. Can be good. Sabotage bonuses now increase the cap. Okay, I'm cool with that.
Hey, look, we just covered all of the non-racial changes in 1 paragraph.
Now for the biggest changes for next age: racial changes. Oh look, 26 pages of change discussion.