During my first watch of this show there were around eleventy kabillion times that I reflexively shouted "that's not how that worked!" at the TV (and I'm a 90s kid with cursory retrocomputing knowledge). I say "reflexively" because I wasn't actually mad at these technical inaccuracies - they were largely in service of a good plot and weren't "SVU" or "CSI" levels of ridiculous.

So yes, those C64s were running software 5-10 years ahead of their time because the writers felt like it and were able to get away with such.