Haven't read the articles or papers yet, but I am really skeptical of the kind of statistical inferences talked about in the article -- "we were able to prove Romance from Latin using our model, so using the same model we got #..."; it seems to me this kind of thing assumes they can project a model of language mutation built from data out of the iron age back to neolithic, which is... a really giant assumption.
I'd say dynamics of human history are really full of all sorts of variance and instances of punctuated equilibrium.
Still... it wouldn't surprise me to find surprises around the Anatolian languages and their age and origins. They do seem to fall outside the 'norm' of the mainstream of Indo-European languages and the age of their split from the origin of whatever variant of early Indo-European that Yamnaya spoke I suspect could be a lot further back then expected. And it wouldn't also surprise me to find back and forth flow for a period of time from Anatolia to/from the Pontic-Caspian Steppe.
That's been my problem with this approach too. It's an arbitrary model, fitted onto very limited data that doesn't generalize, under the very assumption that they all derive from a common root. I'm totally willing to accept that the language and DNA models can be thought of as complementing each other, but any conclusion stronger than "perhaps (almost) all European languages have a common origin" remains speculative. And that's not a very interesting conclusion.
I'd say dynamics of human history are really full of all sorts of variance and instances of punctuated equilibrium.
Still... it wouldn't surprise me to find surprises around the Anatolian languages and their age and origins. They do seem to fall outside the 'norm' of the mainstream of Indo-European languages and the age of their split from the origin of whatever variant of early Indo-European that Yamnaya spoke I suspect could be a lot further back then expected. And it wouldn't also surprise me to find back and forth flow for a period of time from Anatolia to/from the Pontic-Caspian Steppe.