I think I might a good person to answer this, since I am so young. (16 years old) The short answer is no, not really. Even though I like Disney World just as much as any other kids and I've always had fun, I wouldn't have been a superfan like how I am now if it weren't for me finding videos of old attractions. Seeing the old Disney is what made me truly fall in love with it, especially 80's Epcot. I don't really complain much about the modern Magic Kingdom and I still love Epcot, even if Future World is nearly a ghost town because it is really unique. I really liked it the first time I went, even before knowing about its history, but It always did seem like Future World was kinda empty. I am a 0% fan of Hollywood Studios and I've never been to the Animal Kingdom so I can't answer for that.
So yes it would be enjoyable but Epcot wouldn't mean nearly anywhere as much as it does to me now without the knowledge of what once was!