When a union organizer yaks about the evils of corporate <insert topic>, a critical reader discounts the rhetoric because of the source. If you want to form an opinion about the Verizon CEO, don’t use the CWA as your primary source.
Similarly, these folks have an agenda that drives everything they write. Read it, but do so with a critical eye and remember that the authors employment is tied to the positions/opinion that he is expressing.
The answers to the problems we have with education are nuanced and numerous. The convservative portfolio of solutions is narrow, and never, ever changes.