Perhaps you missed this summation:
protects the right of teachers and administrators "to create and foster an environment within public elementary and secondary schools that promotes critical thinking skills, logical analysis, and open and objective discussion of scientific theories
And perhaps you also missed the proviso specially stating that religion was not to be discussed as a result of this law.
You also said:"Teachers will be free to expose these efforts for the dishonest propaganda devices they really are, without fear of reprisals!"
A primary reason why school teachers do not discuss criticisms of Evolution is because people tend to find the criticisms quite convincing. When the pros and cons are both discussed, Evolution loses. Now, you can say that's because people are fools and do not understand the wonders of science, but when scientists lay out their theory and cannot explain the theory in a convincing way, it says something about the theory.
Richard Feynman said that if science is well understood, then it can be explained to a child. But he was talking about Physics. That's real science. Evolution is not in the same league as Physics.
That's why scientismists (people who hold to scientism philosophically and ideologically), as opposed to scientists (people who practice the methodology known as "science"), don't want anyone explaining the pros and cons. That's why people like Coyoteman and Soliton are so afraid of anybody presenting evidences against evolution - even though falsifiability is ostensibly an integral part to scientific methodology.