The main point of the article is that scientific & regulatory community was led by profit and not in the "spirit of disinterested inquiry".

From the article: The original study on which the oil theory is founded, by Dr Juan Tabuenca Oliver, was published in the Lancet

Also from the article: they concluded that, without any doubt, the contaminated foodstuff was tomatoes, and it was the pesticides on them that were responsible for the epidemic. The organo-phosphorous chemicals would indeed cause the range of symptoms observed by clinicians.

Getting published in The Lancet does not prove anything. eg MMR vacine\autism.

The article is well worth a read.