I think that this kind of overreach is very useful. It reminds people of just how dangerous religious jackwads can be, and why they shouldn't be anywhere near a government position. I am hopeful that this is indicative of a downward spiral; that as the religious right's political influence wanes, they will push for more radical legislation, which will accelerate the loss of political influence.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould