Wow! So you are driving along at 30 MPH, the speed limit. 10 feet from the intersection, the light turns yellow and you are expected to stop??
I figured that, so the law is meaningless, poorly written. Totally up to the officer to decide. Where is the point that it is ok to enter on a yellow to where it isn't? Totally subjective.
The driving rule is that yellow=stop. Everyone should plan to stop on yellow unless they are so close to the intersection entrance when the change to yellow occurs that stopping is not safely possible.
The state code or statute allows a law enforcement officer to apply common sense discretion. It’s not intended as a “get out of jail free” card that drivers can use to avoid stopping on yellow in any situation.