I'm going to post only a very quick response. I just tested my level 40 fire/fire tank in PI against level 41-43 nemesis. I did not have much trouble with mobs scattering from Burn. They seemed to but it wasn't until my patch was just about gone. I then gathered again and finished them off. I'm really not seeing the big deal at all about this. No one with any reason could argue that burn wasn't over powered before. I know it was and I certainly took advantage of it. To me the changes seem fine and much more balanced.
