I think the combination of Plate Vision and Plate Discipline as well as the Pitch Break attributes should in principle affect the aspect of the game we are talking about... but I personally feel they don't respond as differently to different pitch types as I feel they should. And I don't feel as wide a separation between CPU hitters in their ability to lay off (bad) pitches.
Another point is, I think much of what we call deception in pitch release is probably due to the difficulty of picking up different pitches coming out of hand, and given that no pitchers really tip their pitches in the game (their delivery is always consistent, unlike real-life pitchers), we could probably say that they are as deceptive as they can be, in terms of their delivery. And it's probably unrealistic for us to expect that the game will replicating "tipping" pitches based on slight difference in pitch delivery.
More likely way to incorporate deception is to make it harder to pick up different pitches right off the release point. Right now, it's not impossible (although still difficult and takes time) to distinguish different pitches right after the release (in part because 4SFB is REALLY straight in this game), but we could imagine the game making it slightly tougher to judge different pitches in their initial trajectories out of pitcher's hand.