Unfortunately the article is kind of idiotic, the actual paper [1] has nothing to do with discovering a newly discovered flaw. As the paper's author even says,

Unfortunately the article is kind of idiotic, the actual paper [1] has nothing to do with discovering a newly discovered flaw. As the paper's author even says, many students find the same "flaw" themselves. [1] http://online.watsci.org/abstract_pdf/2019v26/v26n3a-pdf/4.pdf http://online.watsci.org/abstract_pdf/2019v26/v26n3a-pdf/4.p...