On Crom even pug minis you can often meet with a high level of opponents. If this happens, then WoF better used only in exceptional cases to kill the already injured opponents.
The role of WoF is exaggerated in PvP. Many players have the wrong view about demonologist because it was formed long ago. They do not take account of the changes that affected by this class:
1.
Demo has been nerfed with CC's system restructuring and the gradual reduction of CC's role (currently there are too many possibilities as to avoid control);
2.
Demo has been nerfed with sprint system restructuring (even with kite, your's energy ends much faster than opponent's HP and then starts hand-to-hand combat. Opponents no more consume stamina as in earlier times, when they was unable to make a serious combo the melee);
3.
Demo has been nerfed with revamp of PvP gear. Currently every opponent can increase your protection almost like a tank (AA + PvP armor, accessories, T3 crafted or other Weapons to protection);
4.
Demo has been nerfed with the gradual improvement of other classes, which has taken place in recent years. The last time a vivid examples are HoX and Barbarian.
5.
Demo has been nerfed with the rising of physical weapons dps. On the contrary the magical weapons updates in recent years gives a small improvement of damage. Because there is different algorithm to calculate it.
Enjoy