Definitely interesting, Goldnote has obviously done a lot of research on LP equalization as used by various record labels. However, simplifying equalization curves by record label doesn't account for producer, recording engineer, mastering engineer, and artist preferences. Within the record labels whose artists I listen to the tonal balance is all over the place, whether it's on vinyl, CD, or streaming.
It would be interesting to compare the sound of the same recordings between the vinyl and digital to determine the difference. Maybe that's what Goldnote did.