Why Does IB Get Attacked?

Read a comment posted at Ms. Mercer’s blog at Response to a Comment.

It is not unusual for IB, and TOK in particular, to get attacked.  Read this New York Times article about the opponents of the IB program and explore their website.

Why do they think people are attacking TOK and IB, how does it make you feel, and do you think any of those arguments have any validity?  If you agree with any of them, please say why you do — and it is absolutely fine to say you agree.  If you believe any of the arguments are fallacies, please explain why.