There's a fine line the Heard has always had to walk: The busloads of tourists come primarily to see what they call "traditional" Indian art and culture, as if there was once an idealized Indian who has now been subverted and deracinated by European culture.
But the staff and management of the Heard know two vital truths. First, there never was a traditional culture: Every Indian group has been changing and reacting to change since prehistory. Second, Indians continue to evolve and react to their environment, just as everyone does.
It's part of the Heard's mission to knock some of the quaintness off being an Indian and instead humanize them. They are, after all, people, not symbols.