Angle is an accident, and should not be punished too severely. Angle is a subjective call. No one can tell the difference between 29 and 30 degrees. There will be more angle calls. They are awarded a point in a situation where they should get one. 2.
Steep shots have their advantages.
Intent is moot in the making of a good rule. True, that's why it tends to get called at 40 and above.