This is incorrect. Missed ranged attacks, missed hits etc will all apply TH. It's very easy to test if you are skeptical.
As a point of interest though, there may be some abilities that do not apply TH due to some interference with the effects that they apply.
Steps from /DNC for example seem to screw with TH application and will not apply TH if they are your first action on a mob.
There may be other cases of this, but I am not aware of any.