How relevant is Arslantepe to the PIE homeland debate?

Below is an abstract of a presentation from the recent 11th International Congress on the Archaeology of the Ancient Near East (see here). It was discussed on at least a couple of DNA forums, and hailed by some as potentially pivotal to the Proto-Indo-European (PIE) homeland debate. Emphasis is mine:

Palaeogenetic and Anthropological Perspectives on late Chalcolithic and Early Bronze Age