The point of putting things in separate directories is to keep them separate, from interfering with each other; in distributions the object is the opposite: To enable them to work together This means they must see each other, and be in common directories.
This goes for shared libraries, data files (in/usr/share), but also for binaries, thatcan be used in scripts, etc.
Hence, putting them in on-directory-per-package is for tools that are not designed to work with other tools, and cannot expect other tools to be present, such as in commercial packages only.
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This goes for shared libraries, data files (in
Hence, putting them in on-directory-per-package is for tools that are not designed to work with other tools, and cannot expect other tools to be present, such as in commercial packages only.