The title is super-clickbaity, as no Indo-Europeanist working today believes in a single Pre-Greek language; this was the idée fixe of the scholar Robert Beekes well over a decade ago now, and very flawed research as Beekes was succumbing to dementia then. In fact, within the field "Pre-Greek!" has become something of an inside joke.

The article does eventually mention the current state-of-the-art, but only after perpetuating the misconception for some paragraphs, and that is poor form for a pop-sci article.