Yes they snuck in a nerf with the buffs. Cooldown helped us because it allowed us to get a stronger attack in without requiring a proc.

Now instead of getting a 2 Cooldown every 5 attacks we only get 1. Its not the biggest nerf, but it is a nerf. Not only that but we now will need to use Flamethrower more if we plan to go into Overheat, which is another nerf because Flamethrower sucks.