I won't say that the article is wrong but a few things.
Irrespective of my views on it, a link of Albanian and Germanic has been supported by other scholars. I don't agree to be frank but you should refute their arguments.
(Look, though. In page 359 he compares
reconstructed 'Indo-Ir./Balto-Sl.' pronouns to attested
Attic Greek ones. That doesn't have to do much with his arguments but it's comparing apples to oranges. I don't take seriously into account those who do it)
I personally believe Albanian has a Phrygian element too. And Phrygian in some ways connects Greek with Balto-Slavic and Indo-Iranian.
We don't know much about 'Thracian'. Actually there are some inscriptions which are undepichered and seem incomprehensible.
Rolisteneas Nerenea tiltean ēsko Arazea domean Tilezupta miē era zēlta
I think in that incription 'domean' is translated as 'woman'. What is it's IE cognate? It seems superficially similar to English woman but that comes from wīfmann. We then can say that is is related to PIE *dem, *dom, Gk. domos, Lt. domus, OCS
domŭ = home, house. So it is the person who stays in house or who rules the house if we want something more feminist and theoretically it can be correct but we can't even verify that the way the scholar chose to seperate the words is correct because they are seperated like that in the ring.
Rolisteneasn ereneatil teanēskoa razeadom eantilezu ptamiēe raz ēlta
(What is transcribed as ē can also be h)