I don't see any links whatsoever to hard evidence in the article. The only thing close are a book and an article published in Spanish and French, respectively, and seemingly no translation or availability in English bookstores. Yet everyone in the comments here are accepting it as fact, almost as readily as people accepted the tainted oil as fact.
It's funny how human heuristics prevent critical thinking, even after reading an article about the lack of critical thinking.
One of the most obvious pieces of evidence this article could have included is "The Spanish toxic oil syndrome 20 years after its onset: a multidisciplinary review of scientific knowledge." [1]. In the abstract you will find the following:
Attempts to reproduce the condition in laboratory animals have been unsuccessful, and no condition similar to TOS has been reported in the scientific literature.