That was beautiful. I have heard the chant "In Paradisum" many times, and when my pastor was visiting my Dad for the last time in hospice I asked him to sing it with me to my Dad, but I never heard Faure's.
I do differ with you on the simplicity of contemporary Christian music. Usually they are much more complex rhythmically, and generally I find that the lyrics give me much more to ponder than the lyrics of traditional hymns. (When I say contemporary, I do not mean Christian pop songs, some of which are excellent, but most of which are brain numbing.)
If you have ever looked at the piano arrangements in Spirit and Song you will see plenty of complexity, particularly in rhythm. Occasionally, just as I've done with classical music, I have subdivided measures into four parts with a pencil and looked at them 1/4 measure at a time...of course, once I "got" it it was repeated throughout the song--thank God!
The St. Louis Jesuits music, the first contemporary Christian music (think Schutte and Foley), was pretty simple--but they are both extraordinary musicians and liturgists now, with advanced degrees in music and theology, both of them involved with universities.
I give them a lot of credit for picking up their guitars and filling an immediate need---and developing their skills to such a high level later.