I guess you could make the same argument pointing to Jupyter Notebook or D3.js - if you already know how to use a programming language like R, Python or JS and

I guess you could make the same argument pointing to Jupyter Notebook or D3.js - if you already know how to use a programming language like R, Python or JS and how to visualise data with it, you're probably not the target audience as end user. This looks more like it's made for an Analyst who mainly uses SQL or Excel. But if it makes me more productive that Jupyter Notebooks for simple reports, I'll give it a try.