Wow, so they can't tell that it's dated, but they'll magically know? Seems like your claim is unfalsifiable.
That is not what I said. What I said was they may not be able to explian why it seems dated. If ypu look at an 80's jacket and it seems dated, you might not be able to clearily pinpoint just why. You know its dated, but you might not be able to understand its a combo of stitching, material and some set design elements.
Explain why I think that the NX looks more primitive than the 1701?
I'll give it a shot. But you must look at it objectively and not as a fan.
1:The TOS ship is in the "Atomic Age/Space Age" design style. Commonly called "retro", "60's retro" and "Retro future". This is not an attack, its simply a fact. For sci-fi of the 1960s it was the style, it looked sci-fi, it looked future. At that time.
2: The design elemets, look overly simplistic and primative. Once more, not a slam, simply a fact. It does not read as sleek, but simple. Like a 1920s roadsters, sleek at the time. But with a modern eye it lacks detail, it reads as primative and simplstiv in shape and function.
3: The NX is a deign of the post Star Wars, modern style. It us "busy" and has detail, everywhere. The shapes read as more robust and complex. Its like a 1940s car vs the 20s roadsters.
They are simply two very differnt styles. You cant simply hide the Space age styling and retro does not read as future to most. if you smooth the textures of the NX or detail a texture on the TOS ship, the shape and stylings still remain