There are distortions everywhere. Some are more subtle than others. When Kirstoff generically refers to "chemicals", most people recognize that he is either biased or using shorthand for "a compound which I did some research on and found to be risky in the context in question." Deciding which he is doing is an exercise for the reader, and must always be. Using "perfluorooctanoic acid" is certainly better for an educated audience that has the will, time, and ability to do its own research, but it is better for Kirstoff to do the research and shorthanding -- in a truly unbiased fashion, which may not be the case here -- for an audience that either lacks the will, time, or ability to dig deeper on their own. Perhaps ideal is for the article to have hyperlinks for more information.
While we're on the subject of distortion, I recently read a summery that had a couple of strong shorthand distortions in it, which may provide some interesting points of comparison:
"Pulitzer-prize winning science writer Deborah Blum" -- appeal to emotion -- it asserts that the reader should assume that Deborah Blum is an expert on science matters because she won an award for writing. If her article stands on its own, leave that bit out. If it rests on her expertise, this brief note is not enough to establish it. This sentence is fine for an audience that has the time, will, and ability to check on Deborah Blum's actual credentials, but relies upon the author's research and integrity for those audience which lack those criteria.
"decided to call out" -- appeal to emotion -- trying to get the listener to emotionally go along with a rebel who's fighting the power.
"have you found reporting on 'chemicals' to be as poor as Blum alleges or is this no more erroneous than any scare tactic used to move newspapers and garner eyeballs?" -- false dichotomy -- the options are "Kirstoff is wrong because Blum says so" or "Kirstoff is wrong because he uses scare tactics."
Distortions are everywhere, and journalism necessarily calls for using shorthand. Eldavojohn wanted to communicate the essence of Blum's piece without reproducing it verbatim. He used shorthand which he hopes will give a fair image of the underlying work, by using turns of phrase which would -- in isolation -- be clear-cut distortions. The point is elegantly made by Blum herself (though she gets it backward):
But if we, as journalists, are going to demand meticulous standards for the study and oversight of chemical compounds then we should try to be meticulous ourselves in making the case.
No, you are wrong. It is specifically the case that chemical compound oversight should be far more technical than public writing. Public writing, whether from Eldavojohn, Blum, or Kirstoff, is about communicating complex underlying issues in a brief and simplified form. That is its very nature. If such simplification is biased, then there is a very serious problem -- but the mere act of simplification is not a fault in itself.