The question of abstract efficiency via reuse is academic. If the XML documents were the ones that users accessed most of the time, or were the only documents available, that might change the analysis. But that isn't the case.
But I think that was maybe just a mistake? Maybe he meant https://www.congress.gov/bill/117th-congress/house-bill/3617...
Cracked the plastic case a bit but that was it. The most amazing part to me was not the HDD surviving but the LCD backlight. This back was when they still used those super fragile thin CCFLs.