Frenzied Momentum: Increased the damage proc from this set to 10834, up from 9028, to better account for the wind-up period of your Heavy Attacks; its total DPS was lower than other sets when getting multiple procs off cooldown.
I’m guessing players still had a little too much health left when getting hit by this and Zos thought that’s unacceptable.
Just another proc that will create endless threads calling for its nerf after it’s released.