I don't think any surround/quad fan has ever been happy with the quad mix of Tapestry, no matter what the media type
The Sony Japan reissue uses the 5.1 remix by Paul Klingberg rather than the old quad (which just sounds like the stereo mix run through an echo chamber). The issue with the 5.1 for me is that most of the elements that seem to be coming from the rear channels, like the guitar and sax solos in "It's Too Late", are still present at like half-volume in the fronts. Had they made that stuff totally isolated in the rears, it would've been a great mix.