Criterion Blu-ray's lack multi-language, how come?

[Spit_Fire]

With the exception of "The Curious Case of Benjamin Button" which features French and Spanish subtitles. Why do catalog Criterion titles such as (Wings of Desire, Seventh Seal, etc..) only carry the usual English subtitles?

I wondered why that was, you would think Criterion being such a prestigious collection it would carry a whole bunch of important languages.