Well, then I guess, in addition to evolution, we have to say goodbye to geology, archeology, astronomy, etc. This is definitely a red herring. The success of science lies not only in the ability to set up lab experiments, but to assess predictions about future data and create consistent models of the phenomena in question; evolution does both of these things.
If a Biology class mentions the origins of life, they could offer that although most biologist beleive evolution happened, more then just a few disagree.
If by more than "just a few", you mean around 1% or less, you're right. Personally, I think it's best to stick to what has been thoroughly peer-reviewed when putting together a curriculum for a primary or secondary school science class.
Good bye? Certainly not, they are valuable disciplines. But then so is Theology.
The scientific method might be applicable in these disciplines is some cases, but not in others--depending in part on how loose your definition, which is sadly growing increasingly self serving and diverse depending on what people are selling.