I agree with Nighthiker. If just like the camera crew that travels with him, the horse owner/wrangler was not on camera. In order for a person to get that close to a "wild horse" a 200 yard shot with a tranquilizer gun would be the best bet. I have tried to professionally break wild horses for the BLM and have found that after 2 months of work I was able to get on the back of one - not a few hours of making nice. The show is what me and my friends watch as a comedy of errors. By the way - I would eat the horse before I would eat a live snake! Just a personal note.
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A government big enough to give you everything you want,
is strong enough to take everything you have.
Thomas Jefferson