Gabriel Fauré's Pavane Op. 50 is an example of a song that really turns into something drastically different when played much slower than the prescribed tempo. To me it sounds much better that way. In the case of this rendition of Merry Christmas, Mr. Lawrence, it's a bit more subtle though. It really does allow you to hear the strings resonate more like you quoted, and to me, it makes the entire piece sound even more contemplative than it already did.