The columns in the matrix have a different order than in the problem description. From what I figured out, it should be:
1. Touchdown - 6 points
2. Try after touchdown - 1 point
3. Try after touchdown - 2 points
4. Safety - 2 points
5. Field Goal - 3 points
6. Defensive safety on try after touchdown (i.e. conversion safety) - 1 points
7. Defensive "touchdown" on try after touchdown - 2 points