I've to admit, I don't see computers and Andy Warhol as that perfect match, I have seen it been suggested to be. Warhols' approach to serialization built on this as an industrial process, and this being an industrial process almost exclusively. Graphical computers suddenly made this accessible to individuals. From now on, there was really no difference between a single copy and serial reproduction, as exposed by what became known as the Desktop Publishing revolution. Which pretty much led to Warhol falling out of favor.
(My impression of that Amiga demo is really more that of Warhol being lost, and realizing that he was going to lose his claim to the machine. Like any great artist, Warhol was reflecting the cultural and productive conditions of his time, and this time was coming to an end, as the gap between the kind of imagery corporations could produce and what was available to individuals was closing.)
At one time artists could only make one of something. Later with 4 colour processes you could make a lot of something so that more persons could have and enjoy the creation. With digitsl even more could enjoy something - created by a master or not.
To me, the demo has something morbid about it. It's a bit like demoing a generative AI interface with Hayao Miyazaki, showing how everybody can now impersonate his style – and everything that had been sacred to him, like the combination of craftsmanship and imagination to capture a personal expression of a fragile world – by typing a few careless words into a chat prompt. ("Totoro in a vintage seaplane, Miyazaki, award winning, high resolution.")
In the era of dall-e or midjourney feels like a cheat code in comparison.