This is about as logically consistent as complaining that the two authors who are James SA Corey didn't write an authentic science fiction book series in "The Expanse" because they're not in possession of an Epstein drive.

The early 1980s cyberpunk genre is a speculative fiction that blends scifi and dystopia/extrapolation of current cultural phenomena to some point in the future, don't twist yourself up too much about it.