Ignore it at our peril. We all know about the antiscientific nonsense that comes from the fundamentalist right. All that ignoring this nonsense accomplished was to let the nonsense grow to the extent where a very significant portion of the US thinks evolution is false. "It's only a theory."
Unfortunately, antiscientific idiocy is also rampant on the far left. The article cited in the original post is the tip of the iceberg. Google the phrase "Newton's Principia Mathematica is a 'rape manual'". After that, think about this statement by Luce Irigaray:
Is e=mc2 a sexed equation?...Perhaps it is. Let us make the hypothesis that it is insofar as it privileges the speed of light over other speeds that are vitally necessary to us. What seems to me to indicate the possible sexed nature of the equation is not directly its uses by nuclear weapons, rather it is having privileged what goes the fastest...
It seems that their main point (besides not having even the foggiest idea of how mathematics is taught) is that they would much rather have math and science teachers teach anything but math and science. Teaching multi-culturism would be particularly nice.