You know tech savvy was not really a thing back then for the everyday uneducated person, right? You kind of had to have been a geek to have known this stuff. There are a number of dead-simple cloud solutions today, but you cannot just scold, say, WB for not using a company cloud back in checks Wikipedia 1993!
Ok but preserving media seems like a thing Warner Brothers should be really good at. Why did Warner Brothers have an everyday uneducated person in charge of archival?
Why would an archivist back then happen to know computers that intimately? I'd be surprised if the average archivist knew much more than how to do data entry... and I wouldn't even hold it against them if they happened not to know how to do data entry.
You don't need to be an expert in the technology to ask a few relevant questions like "where is the information stored?" and "what temperature and humidity does it prefer?" Of course WB is famously bad at storing film too so maybe I shouldn't be surprised.