Upon seeing these changed a single thing comes in my mind: did they even test warlocks or ever played one?
First the Haunt able to cast while moving, now not but FF has a cast time? And they refuse to give MG channel time so they nerf its damage and put it into dots (which will probably tick like bullshit anyway)? And whats with the reasoning that " RoF wont generate enough embers in single target fights so you needn't to take MF"? Who on earth took MF for single target ember generation through RoF?
I still think we will be fine in 5.4 tough (PvE that is) but these changes and the reasoning behind them are ridiculous.