At the end of the day, its just a game. I don't understand the argument against an optional radar from the user's point of view. Including it will not mellow down the realism of the game. It will only improve the handicap of not actually being present on the field yourself.
Its the same logic as having different camera angles for batting and bowling. PRO mode might be the most "realistic" camera angle for batting but the far and close batsmen cameras are more convenient while not being realistic.
And I will go a step further and say that the radar should be there when bowling as well and should actually have an active marker for the direction the ball is travelling in. Otherwise, with the current fielding cams its very difficult to judge the direction of the ball that soars over head. Also the camera pans too slow (As has been reported before I think)