When actual symphonic choirs sing in those huge halls, most people (if any) cannot really understand what they're singing about - it IS a garble! It's not the point of sample libraries to get absolutely intelligible lines of text, at all - but the sense of something being sung in syllables.
In addition, EastWest goes out of their way to make sure that their libraries, both dry and reverberant, sound great and are easy to embed in any production. The recordings are very warm and do not sound as if they've been edited to death.
EastWest always sounds classy, genuine, professional and - as needed - very tender or cinematically large.