Why is World on Fire getting affected by duration..?

[neverplayserious]

The energy over time costs for keeping the ability active is affected by duration, why are all the energy costs affected by efficiency except for World on Fire?

[GinKenshin]

cos it's a toggle ability, it's been like that for like 2 years now 

[Voltage]

All channeled/toggled abilities gain more efficiency from Duration and Efficiency mods.

Edited May 3, 2018 by --Q--Voltage

[(XBOX)motionROTATION]

In order Not oversimplify toggle abilities and to handicap min/maxing, duration additionally affects toggle abilities. Incidentally, if you have other abilities that need duration, you can mod for duration instead of efficiency. 

Efficiency is still better at reducing cost, but there is an “alternative “

[(XBOX)Tanta Cinta]

Duration effects the efficiency of all toggle abilities. 

[Aeon94]

16 minutes ago, GinKenshin said:

cos it's a toggle ability, it's been like that for like 2 years now 

8 minutes ago, (XB1)OTF SERENiTY said:

Duration effects the efficiency of all toggle abilities. 

^ These. Toggle abilities' drain are affected by both efficiency and duration.

Edited May 3, 2018 by Aeon94

[Airwolfen]

As to the technical side.

Efficiency changes the energy drain per tick.
Duration changes the time between ticks.

In both cases they still have a limit of how low you can go per second however equivalent to +75% efficiency and base duration.