I work in a research organization where I am responsible for crunching data and produce reports highlighting the most "notable" results. Not that the other data is uninteresting, but the volume is such that Excel cannot handle it and even distributing it can be challenging for non-computer-technical folks without dedicated solutions.

Instead, I can dump all of the processed results into a table, create some views highlighting analysis X vs Y, and share links that give others the ability to ask questions I had not even considered. Now the user is empowered to ask anything and they do not need to engage me for "simple questions". Everybody wins. I believe there is also an extension that allows you to generate and save new queries through the web interface.

It is not a tool for a professional analyst, but a means to collaborate with others. There are heavier/more feature rich alternatives, but Datasette is my favorite tool for getting results out the door without hassle (can run it off of a laptop after a pip install).