Wouldn’t a digital reconstruction just have whatever textures were selected?
Yes, but the point is that we don't know a lot of the context around these layer III T-pillars to make informed choices in depicting them. For clarification, I'm using the GT stratigraphy because I haven't looked up the KT chart.But just to highlight some knowledge gaps, it's usually not clear what damage was caused during the backfill process, what the exposure conditions for these pillars were during their lifetimes (e.g. roof or not, though these earlier rectangular rooms are generally agreed to have covered with wooden beams), and even the dating is a bit suspect in this area.
Plus, the relevant team may not even have a LIDAR scanner to do that properly as that's fairly specialist equipment. Etc.
Getting to the point where it's possible and reasonable isn't easy.