I feel like the authors make a logical inconsistency. They present the drop in "identify missing context" behavior in artifact conversations as potentially concerning, like people are thinking less critically. But their own data suggests a simpler explanation: artifact conversations show higher rates of upfront specification (clarifying goals +14.7pp, specifying format +14.5pp, providing examples +13.4pp). It's obvious that when you provide more context upfront, you end up with less missing context later. I'd be more sceptical about such research.