ah!
I'll bet dollars that this is the unqualifiable difference between vinyl-analog v. digital; if there are specific mastering constraints, it sounds like e.g. the timbre of certain sounds/instruments would be affected, likely to the benefit of our ears since the sounds most impacted tend to give the harshness that some people complain about with digital presentation.
> The vinyl medium does not “like” a lot of high frequency information — brightness/hotness of certain high frequencies are the most common issue we see on the audio masters we receive. Instruments such as hi-hats, cymbals and tambourines often cause distortion if all high end is allowed to pass through to the cutting lathe. Vocals that contain a lot of “SSSS” sounds (sibilance) will also cause a distorted sound on your master recording if not properly treated.