Here is the website of the group Civitas, mentioned in the article. I'll leave it to the reader to discern whether they are Catholic or not.
The Civitas Institute is affiliated with the SSPX (Society of St. Pius X), so yes indeed they are traditional Catholics.
Here is the French website translated to English:
They were Catholics. I guess the word “fundamentalist” is considered a smear therefore placed as a preface. The AP/CBS/Reuters were vicious liars in their attack but must of the EU newspapers were reasonable and HONEST.