actually i changed my reply a little bit from your quote. i don’t remember if FADC means exactly the same thing in this situation. people use FADC in middle of combos. ryu’s srk > FADC > ultra 1 is the best example of what a real FADC is. in ryu’s combo, the focus attack doesn’t even come out.
in this situation, i’m not sure if what you’re doing really qualifies as a FADC because your focus attack needs to hit the opponent, either level 2 or level 3 FA. in the end, it doesn’t matter though, i might just be using the wrong terms, but the way to execute this combo is still correct.
focus attack (hit the opponent) > dash forward immediately after FA hits > s.hp > senku > super