It's not impossible to differentiate between a called dive/keep/pitch and an option. Some of us may get it wrong sometimes, but that doesn't mean we're always wrong.
If we're not blocking the EMLOS or the next guy out, it's almost certainly a triple option.
Is it possible that CPJ could tell our line and backs to avoid blocking those two players but still give a pre-determined call for the QB?
Sure, but that'd be pretty foolish, IMO.
Sometimes we'll leave the EMLOS unblocked but hammer the next guy out with an A-Back. I call that our "BB Blast" play and it's a designed give.
Sometimes we'll fake to the BB (who will cut the End) and double option off the next guy out - it looks like a triple but it's not.
From my perspective, Vad was not a terrible triple option reader. He was about average there with some real highlights that showed his potential. His triple option woes were more related to the fact that he did not really commit to his keep reads and get north-south. As has been noted, a long run of 21 yards by a tall, fast triple option QB is indicative of some problems.