Generally, correct. If the eligible player has no possible opportunity to attempt to reach/catch the legally forward passed ball, then contact on that player by an opponent can not be pass interference (offense or defense). Philosophically, if the contact is NOT a personal foul (striking, targeting, BBW, etc.), but does restrict or impede the eligible player, and the eligible player is in the same 1/3 of the field as where the pass comes down, we’ll rule holding. If the eligible player is in the other 2/3 of the field, and the passer doesn’t look in that direction or appear to want to throw the ball to that area, then no foul. Mechanically, an official observing an eligible receiver, who sees some action that restricts the receiver must ‘take a peek’ at the QB, to see if he is interested in that receiver. If so, then that is holding, right now. If the action persists and the passer throws to that area of the field, then the action becomes pass interference.