I may be wrong, but a cursory look at the data gave me the impression that the actual majority of that data was actually not related to dealing with commonplace string manipulations. Other than that, we probably agree.
The big one that's often ignored are collation tables: while there's the default in ISO 10646 IIRC, each region-language combo might have their specific overrides (imagine "ss" being sorted as a separate letter in German, and not as after "sr" and before "st", so it would be sa..., sb..., sr..., st..., ssa..., ssb... etc); and then Austrian German might have a different phonebook ordering.
