Are the factory beats based on actual famous (or less famous) songs ?
If yes, is the playlist available somewhere ? I guess the beats have been anonymized for copyright reason like the preset names on multieffects units (ACDC’s “stack”, Nirvana’s “grunge” …)
High five for answering your own question before even asking it!
Aside from that, I think these beats patterns were just Goran playing thematic beats. He was probably inspired by something, but not anything worth mentioning specifically.