It's a flippant answer, sure, but spreadsheets are the index cards, sticky notes, and yarn approach to data organization. Certainly they are easy and approachable to use, but any sufficiently complex data set in general is going to be more "chaotic mind corkboard mess" than "organized".
Spreadsheets are very useful data hammer, but not all data is a nail; to borrow another aphorism.
That said, there's a wide gulf in the general user approachability between spreadsheet applications and more bespoke/"better" data organization options. Decades of experiences and mistakes learned from tools like DB2, FoxPro, and Access have shown us we have a hard time finding an "easy medium". AirTable thinks they have some modern ideas. Microsoft's PowerApps teams have their own modern approaches (and as almost the direct the inheritors of FoxPro/Access, presumably the most experience to learn from). Simon Willison's work with Datasette (SQLite DBs wrapped in simple view/management webpages) has had some interesting ideas. Though I don't think any one approach will solve it, it might take a whole shelf of tools, and at the end of the day maybe as a species we'll never have as clean of a user experience as the worst spreadsheet.