Heart Attack on a Plate Gets a "C"??

I recently joined so I hope this isn't a FAQ that is addressed elsewhere.  (The search feature came up with nothing).

I entered my fettuccine alfredo recipe just to see what the data looked like.  

The recipe is here:

http://caloriecount.about.com/fettuccini-alfr edo-hop-recipe-r1018442

I actually used to eat this a few times a month.  It's amazing I'm still walking around.

My question is:

How, in the name of all that is good and holy, does this devlish concoction get a "C" and not an "F"?

Thanks,

Mark

Yea that is weird.  I don't like olives.  So I would expect them to get an 'A' for sure.