I think what is kinda getting over looked here is that someoone inside the reptile community/industry is supplying the snakes for these stunts.
Surely, NBC does not go out and purchase 100's of snake for an episode.
In my opinion the snake wrangler would be just as responsible, if not more so, than the network.
Classic case of "when two fools met"
One for suggesting this, and the other for going along with it.
Money has a funny way of clouding one's judgement sometimes though.