Deathfire Touch Needs to be un-nerfed

There are some champions who have abilities that affect their next auto-attack. Unfortunately, Deathfire Touch no longer activates on those abilities. Would it be too much to have this ability proc like Sheen for those abilities?

Champions such as and need this. Is it fair that gets DFT but doesn't?

Edit: If you see a cyan square, that's WuKong