Crit-rate nerf?

[Molly_Millions]

That's because the poster left out this critical piece of info (no pun intended):

The algorithm for calculating the following parameters has been revised:

Critical Hit Rating / Critical Hit Attack Power / Magic Critical Hit Rating

* Players will find the impact of these parameters more pronounced when facing higher-level enemies.

Based on that, it looks like they changed the way the algorithm works in relation to the difference in your level vs the mobs level.