Earlier quoted context omitted.
That is because the stated goal of "preservation" isn't really their goal. Thats only lip-service. Their actual goal is getting visitors, and any kind of usable information in the form of photos, videos, 3d-scans, transcriptions or whatever leaving their premises is a problem. Add to that the associated huge business of tourism and you have the explanation why the state and the courts (who are usually good buddies wi…
Ah, the standard Music Industry response to Napster, alive and well decades later. "Make the information hard to get! We own it!" Never realizing that sampling of the information makes it just that much more prestigious and desirable to us, the unwashed masses, willing to pay to visit a museum that has AMAZING ORIGINAL THINGS. If you start with the assumption that every view is a lost sale, you're going to have a rea…
A high-res photo or 3d-scan allows you to do all those things (maybe except really touching them).
So aside from the emotional benefit of having been near the real original piece for a few seconds, all digital derivatives are logically far better.