I guess some of the appeal of those sparse photos is the element of fantasy and imagination. Wondering what it could have been. Looking at a low quality yellowing wedding photo of your grandma... It allows you to think and wonder. Seeing it in 4K video or a volumetric 4D gaussian splat in VR robs you of all that sentimental mystery.

Nostalgia and idealization of the past is also harder when you have a more representative cross section of past moments.