Isley said:

Besides, I don't think one would need to be able to "disappear" to hide from such a ship as the Falcon. A cruiser can have equipment allowing it to detect any ship nearby, but a freighter wouldn't necessarily have that.

Not sure if that's true. In ANH we hear the Falcon's sensors go nuts just prior to us seeing a Tie come into view (before they unknowingly approach the Death Star)

All this discussion is moot anyway. I don't think there was ever a chance Ady would want to change it.