When linear B was decoded the first thing many researchers did was to transcribe every word they could get their hands on, then sort by beginnings and endings of words [2]. I suppose that is what the poster has done since they say there are no inflected word endings, but perhaps a cipher hides these, or they do not have enough data?
[1]: http://www.turkicresearch.com [2]: https://medium.com/@ilyakavalerov/greek-before-homer-how-lin...