You might think it is generous, but when you take an exam do the easy questions count the same amount as the hard ones? When a batter takes a CU right over the heart of the plate that she was sitting on, does it count as much for the BA as every other hit?
It's a decent thread - don't derail it with imperfect (or bad) analogies. (and yes, I have taken plenty of exams where questions counted for different percentages...though a ball put in play is more like an exam where the answer was filled out for you).