I work in the film industry and can say, with certainty, that TNG was not shot with the same consideration.

Television back then knew it was being mastered for SDTV and the artists had a good idea of what it meant they could get away with compared to something that would be screened in 35mm. Final screening medium has always been the most important consideration, not capture medium.

Audiences have also gotten less forgiving of visual quality and less willing to suspend disbelief as the bar for quality has steadily risen. It means that shows are both working on higher definition target mediums and under more scrutiny than ever.

Like, I love TNG but go watch and tell me that it looks half as good as SNW.