Linguistically it can't be. It's just impossible. Nonsense. All what I mentioned at the post above about the language, are loan- words. Albanian tongue is completely a different branch of IE language, and you know it. Every kid of the Europe know this [emoji6]. I doubt you don't know too.
As we know the Illyrian language, was not a written language, so it's impossible to find some ancient tablets at the Illyrian capital (Scutar) . At least till today. The loan words, especially those of ancient Latin origin showing us the Illyrian- albanian continuity. As I read by linguists albanologs, the split between the two branches of Albanian language (gheg northern, tosk southern) had started during the ancient times, before the Slavic invasion on the region. Which clearly mean that those people are living in those regions for millennia. Which mean that tosk Albanians were living in Epirus regions in south Albania and north west Greece, since ancient times.
Have Croatian language ancient loan words? If they have some, we should accept that they have some pre Slavic origin either. Albanian language is too much latinized. It's linguistically impossible that old Albanians came to the region after the 10 century , as are saying all the time some Greek and Serb nationalists . Albanian, Greek and Celtic language are somehow a cultural wealth for Europe. But Basque is on the top list