Agreed it looks like slop, and it's IMO a bad sign. I think a big part of the appeal of old computers is the fact that they're simple enough for a single human to completely understand.
Generative AI is a black box that's impossible to completely understand. Using generative AI signals to me that whoever did it probably doesn't find any inherent value in understanding things, and sees understanding only as a means to an end. Old computers have little practical use, so this leaves nostalgia as the main appeal, and nostalgia has less stringent requirements.