Karma's Tether still DOT?

So i was on the wiki the other day and i realized that even though Karma's w has been changed to be more like leblanc's chain, damage dealt at the beginning and end of the link, it is still treated as a DoT (damage over time) ability. I think this is odd since it now behaves the same way as LB's chain. DoT abilities get less benefit from DeathFire Touch and im sure there's a few other things that have weaker effects for DoT. I wanna know if this is just an error on the wiki that hasn't been changed, or is an actual thing in the coding of the game and if there are plans to change that.