Well… PS and flamers were both too strong weapons.
Even after the nerf, the flamer need again a new nerf (but with ammo reserve like before the patch).
I said it here.
I can understand that people that were playing with a so powerful weapon like the PS know now a frustration. Yes it is a hard nerf, But this weapon was the best melee weapon that was granted to a class that had also best ranged weapon and best DPS for the ranged and melee cause of PS.
I am even surprised that they waited that lot of people get power cycler before nerfing the weapon. I suspect even that it was the main reason.