While I'm all for standards-based options, I think the fetishization does a disservice to anyone dipping their toes into graph databases for the first time. For someone with no prior experience, Cypher is everywhere and implements a ton of common graph algorithms which are huge pain points. AuraDB provides an enterprise-level fully-managed offering which is table stakes for, say, relational databases. Obviously the author has a bias, but the overarching difference between Neo4J and a Triple Store solution is that the former is more flexible; that plays out in their downplaying of ontologies (which are important for keeping data manageable but are also hard to decide and iterate on).