Of course it isn't. The ability to teach it in a public school is. Scientific observers are not beholden to what the government declares as acceptable starting points. Under the Constitution public schools are free to treat scientific matters from both an atheistic and a theistic standpoint. Moreover, they are obligated either to include both points of view or get out of the school business altogether.
Fester, come on...be honest, unlike the school board in the Dover case. Just admit that you want to take science, completely destroy the traditional purpose and meaning and use it as a tool for proselytizing. Lying about it and pretending you're not really doing that doesn't glorify you or make it worthy of the Lord.