If academics and researches need to access "orphaned" flash works, they could have an old PC running whatever version of Windows, or a virtualised instance just for this work. It really should not be attached to any other network, and when crap infects it, it could be rebuilt. Then use them to create a new instance of the media with something saner.
How about, as a last resort, playing it through a nice large screen with a decent audio output and recording it onto another device? Although one of the problems is that people, at the time, cannot always recognize what will be important in the future.
We are now in danger of trapping ourselves so that we lose access to older material. The idea that if something is on the internet it will be there forever is rubbish - We have already lost much of the content from more than 10 years ago.
In the early C19th using chlorine bleaching of wood pulp to make paper became common, and by the early C20th was ubiquitous. Unfortunately, the chlorine bleached paper was unstable and could crumble away over a few decades. Before this, most important "paper" documents were on vegetable/linen fibre paper. As a result, many documents since that time have disappeared from record, or are so fragile that they are not available to modern researchers. For important documents, archivists now have them printed onto "acid free" paper, which are expected to last 500-1000 years. This is one reason why old church records are often in good condition and can still be read, but many Victorian documents have disappeared.
In the early 1980s I was involved in having to archive workplace health records which needed to be kept for 60+ years - It was suggested by a major IT supplier that we use "Write Once, Read Many times"(WORM) optical disks as they used a similar technology to CDs which were initially advertised as "Perfect Sound Forever" - They came back to us only a couple of years later when they realised that some of the media was failing. They recommended that we keep multiple copies of the data on hard drives, and move it on to new devices every few years - We did, but made certain that we printed multiple copies of everything using decent ink onto acid-free paper and archived the copies at multiple sites...