I learned very early on that it's necessary but not sufficient for scientists to go to school board meetings and say, "We shouldn't be teaching creationism." Being right doesn't mean it'll pass.
Essentially what goes on in these seminars is an effort to tell students they should ignore or deprecate the information the teacher is presenting to them. As a result teachers may teach less evolution, which means we have less science literacy.
As a legal strategy intelligent design is dead. It will be very difficult for any school district in the future to successfully survive a legal challenge. That doesn't mean intelligent design is dead as a very popular social movement. This is an idea that has got legs.