Nah. It's not a "wedge movement." ID is a grass roots movement to fight militant secularism. Anyhow, a brief overview the controversy is important and, uhh, educational because it helps students put into perspective a debate that comes up in the news all the time. How could you profess to know anything about the subject if you don't understand what people are arguing about? These are the same reasons schools cover "climate change", the current space mission, etc.