It's not 'made obsolete by DSC', it just represents older production abilities and technology. That's definitely also true of the later series and movies too. TNG started in the 1980s, and established the 24th century look then. If it was made today, it would look different. Just the same argument that is made about the Cage.Let’s face it guys. When you argue that DSC made TOS obsolete than what you’re really saying is that TOS, TNG, DS9, VOY, and TOS & TNG movies also became obsolete