Part of the reason may be that most of the newer commentary tracks I have heard on recent releases from other studios has been the poor audio quality of the Zoom or Skype recordings. The same thing, basically, about several featurettes that have relied to heavily on new interviews conducted in...
That is a long digital to physical window!
And why is the aspect ratio 1.85:1 on physical but 2.39:1 on digital? Theatrical aspect ratio was 1.85:1, So I think the 2.39 is a typo.