The 3-2-1 rule is ~20years old at this point. But just because an archive is "old" doesn't mean we can't apply modern standards to that archive as time marches on, otherwise the BM_ARC would have never been build and opened a couple of years ago.

I mean, that 70+ year old archive must have been digitised at some point, unless Iron Mountain was storing the reel to reel tapes and/or film from the original recordings. So some "modernation" has been applied to it since its creation.