I think you missed the point of the Weir mention. The author wasn't taking a swipe at Weir (in the way that many sci-fi snobs do). He was discussing Weir in the taxonomy of Project Hieroglyph, which is clear from the full context:

> In fact, The Martian was so modest that it may not have qualified as sci-fi in the first place. Cory Doctorow, another one of Stephenson’s Hieroglyph collaborators, uses the term “design fiction” to refer to works like Weir’s. But whatever you call it, The Martian’s space-hackery certainly couldn’t have inspired anyone “to develop new technologies and implement them on a heroic scale.”

The author is saying that Weir's Martian lacks a hieroglyph, which is to say that its problems are too narrow, too local, too provincial. It's missing inspiration on a "heroic scale."