This particular group has their own agenda. They want you and your kids to think like them. Classical ed is a threat, because if you teach your kids to think on their own and have socratic discussion rather than just dumping your own views (or THEIR own views) in...then their agenda cannot move forward.

It would be fairly easy to write a rebuttal to the claims in the workshop blurb. However, going down that road can end up with essentially playing wack-a-mole, and it's worth thinking about how much time to spend on that. SWB, I believe that quality shines through in the long run, even when questioned or attacked.

Worth a read: http://vereloqui.blogspot.com/2012/09/why-david-quine-is-wrong-about.html