Hal 9000 said:
I think for the Maz scene it would have let the original music be audible. (I got the audio fully baked from Ridley, but I assumed that was the reason so I did not ask.)
I also got the Snoke audio from Ridley fully prepared, but I believe it would be too jarring to fade the audio in after that point rather than when it begins.
I’ll have a look at the sound mix in these spots and see what can be done.