depends on how you mean the question
if you're talking games released today that are ATTEMPTING to look semi realistic that don't look good... then that's an issue. if you're talking about overall taste- I love the look of a lot of simplistic stuff from the 8 and 16 bit era equally as much as stuff from today
its sort of in the same vain of why comic books never really look that 'dated' per say. Some art styles last. I would even argue that certain things in like the N64 era (despite the awkward transition to 3D) have a charming look to them because of the limiting technology forcing a sort of comical polygonal look to the characters and things (at lesat with the N64)
go back and play Spyro or Diddy Kong Racing or Banjo Kazooie or Mario 64 or Ocarina of Time. They look perfectly fine if you accept them for what they are. even in their time they were not going for insanely realistic graphics or anything but rather forcing a somewhat comical angle because you had to. I think that is a big reason why so many big franchise characters to tend to be cartoony, because they've been able to transition through time so well.
Obviously if you go back with a bad attitude and play something like Goldeneye you might find complaints because it was attempting to look as 'real' as possible during its time, but even then I don't think its that bad. People have this strange thing where they seem to automatically call anything squared or polygonal ugly and I disagree whole heartedly
