has been proposed by a Montana Legislative Committee
I'm sure that will go nowhere, and I'm also sure that even if Montana passed such a law, it'd do nothing, as its a Federal enclave and the Federal government wouldn't allow it.
But, it's a good idea.
Humans, of the natural hunting type, are the only species absent from the Yellowstone ecosystem. Tourism, at least in its present form, isn't bad by any means (although its now too intense in Yellowstone), but that's not really our real role in nature. Allowing the Tribes to take a few buffalo inside the park would be a good idea for a lot of reasons. But it won't happen.