I don't get the downvotes. The article explains that many researchers pointed out methodological issues in the tests measuring microplastics and the implausibility of some results. An the criticism was made writing letters to the respective journals that published the results, i.e. at the highest level, even some authors admitted the possibility of mistakes in the results. Sounds good news to me and honestly having microplastics in the brain equivalent to a credit card was hard to believe.