Benefit: Shaykh al-Albaanee (rahimahullaah) mentioned in Sifah Salaatin-Nabee that this du'aa and those like them can be said at the end of the prayer before giving the tasleem and also whilst in sujood, as the narrations concerning them are general and therefore they can be said whilst in those two positions as they are both important and emphasised times for making du'aa.
So the point here being: Make this du'aa in sujood aswell inshaa'Allaah.