The problem is that developing the perfect UI for nontechnical people to assemble reports probably requires a bespoke frontend for your business, and one that likely lags behind the reality of its changes. Most businesses instead opt to just hire semitechnical people that can do a bit of data work and give answers to the report-writers, as they can accommodate business changes over time and understand how to construct new queries out of the overall business' data sources.

Maybe that'll change one day with AI, and when it does that will be bought by every big company in the world (-: