PTR Haste Nerf?

It was reported on the european servers that ratio of haste rating to haste percentage has changed:

Live: 10.5 haste rating for 1% haste
PTR: 15.7 haste rating for 1% haste

If true, this is a 33% reduction in the amount of haste given for all haste items across the board. This is a direct rogue nerf as these items here are considered to be at the top of most rogue lists:

Abacus of Violent Odds Binds when picked up Unique Trinket Requires Level 70 Equip: Increases attack power by 64. Use: Increases haste rating by 260 for 10 sec.

Dragonspine Trophy Binds when picked up Unique Trinket Requires Level 70 Equip: Increases attack power by 40. Equip: Your melee and ranged attacks have a chance to increase your haste rating by 325 for 10 sec.