I don't know what sort of "end user" you expect to be poking around in cookie contents. The developer tools storage inspector always provided a much better user

I don't know what sort of "end user" you expect to be poking around in cookie contents. The developer tools storage inspector always provided a much better user interface for doing so, and also exposes localStorage and IndexedDB data. I don't see why anybody interested in this sort of thing would have used the previous interface anyway.