Being a believer myself, I can't say I agree with what happened here. Maybe you need to read that again, but I don't believe ID or creationism ought to be taught in schools. The reason for this, is I believe it ought be taught in the home and in the church. Its not a science course and I doubt I would want someone with a science degree trying to teach theology. It just doesnt make sense.
I opt for the mentioning of other viewpoints, but not the teaching of. I mean, pastor/priests go to school for years to be able to teach those who decide to attend church. Why would I want someone without that same kind of degree try to teach kids about what they truly don't know and probably don't respect? If parents want this kind of ideology taught, they themselves ought to be doing it.
I see the concern of people with their religion of choice, but really, what can a school teach other than there's that belief? Thats a whole religion course. Courses like that can be taught at the college level and take a semister or two. And still, that would be a brief overview.