It's not preserved until the data and source code are open, I'm sure these corporate exercises are impressive to potential clients, but they have absolutely nothing to do with preserving, studying, or expanding access to art and culture.

Yup, this is culture-washing financed with MS dollars, who finally found one way of promoting AI for Good™ (literally spelled out as such in the marketing video), probably hoping it would make up for the Gen AI slop humanity will have to deal with for decades to come.