And the night elf racial was changed because the formula for boss attacks was changed. If Quickness was unchanged, part of the new +hit would negate some of the miss, resulting in it being much less than the 2% it was balanced around. That plus the fact that hunters are dodgeable now probably let them change it back to dodge. The only lame part will be that you won't be able to use it from behind, while stunned, etc.
To clarify, in case anyone is confused, expertise turned out to work as follows: reduces chance to be dodged and parried, as well as increasing spell hit chance. For rogues, only chance to be dodged/parried matter - if you're trying to cap, you need to have an expertise % equal to your opponents dodge and/or parry.