I think the theme of Disney is that many attractions have an educational aspect.
None of that is to the extent that Disney does. Disney has historical items everywhere from the petrified wood stump, to Chinese exhibits etc.
Not to bash, but Universal really deosn't have this. Or six flags, or ceder fair etc,
Nice write up! I agree that Disney Theme Parks try to preserve things that would otherwise be lost to the obsession with "newer" things. I'm not saying that attractions should never change, but new doesn't always equal better. Stitch's Not-So-Great Escape comes to mind.