Counterpoint again -
a. But couldn't we say that about virtually anything? Couldn't virtually anything be hurtful to the "right" person? Are we all to live in a bubble world?
b. I believe we're splitting hairs here with semantics - snapshot versus idealized version. However, you cannot change / evolve Frontierland without completely doing away with Frontierland itself. Frontierland, itself, is designed to be stuck in time.
c. I'd wager to say your average American and average domestic / international theme park goer never was offended by the film because they never saw the film, nor even realized it was connected to SM.