Not to mention throwing an 0-2 pitch out of the zone (intentionally) seems to negate any of the "hot streak" you racked up by K'ing the previous hitter and going 0-2 on the current guy.
I like the hot/cold streak aspect, but don't have a "quantity" on how it's applied in this game. But watching the Cards-Brewers game the other day, Carpenter gives up two early homers on curveballs, and then responds by throwing 3 beauties (all curves) to Prince and sits him down. When a pitcher throws a certain pitch 25 or so times per game, they may throw the occassional "rusty nail" and pay for it, but that doesn't mean the other 20-some pitches of the same type are poor quality. Now, how that type of thing could be accurately and consistently represented in a video game is beyond me .... my preference would be as someone else stated, the ability to play with the effect off (and not just hidden from sight).