Bump - I'm under the impression that this negatively effects people with haste items such as..
Belt of the Destroyer
Windraider's Belt
Girdle of Dark Power
Silver Bracelet of Speed
All of these items display their haste % values in-game - ie: They show as "Haste: 41%" instead of "Effect: Haste"
From what I've read these items displaying their % haste value are no longer speeding up the cool down on abilities like Flying Kick and Backstab.