This worries me a lot as a frost mage.
The "buff" to the proc chance is 0.02 on a basis of 0.53 for BoH and 0.59 for Wushoolays. As a frost mage, I have over 50% haste raid geared, that increases proc chance by 50%. Without haste scaling I get approximately 3% increased proc chance on the trinkets. A nice 33% nerf on trinket uptime. Meta is buffed by 14% but looses haste scaling as well. That is a net nerf of about 25% as well. And these numbers are without even considering the positive feedback from our meta actually proccing. With uptimes in the 40% range, our effective haste is about 70%, which makes the nerf even stronger. That is hardly "comepnsation" and will hurt frost mage a lot more than the other specs.
Maybe someone can bring this up on the US forums?