[majewsky]

Since jq is sed for JSON, by the transitive property, you're saying that sed is not Unix-y. ;)

Seriously though, I use both, and IMO they serve different purposes. gron is incredibly useful for exploring unknown data formats, especially with any form of

  something | gron | grep something

Once you've figured out how the data format in question works, a jq script is usually more succinct and precise than a chain of gron/{grep,awk,sed,...}/ungron.

So in practice, gron for prompts and jq for scripts.