The decision when to use a scope vs binoculars is a good one to have. Just didn't apply to the OP question in my opinion.
I think everybody looks at everything in their own context. I probably have a hundred deer within shooting distance for every one that I shoot and out of those one hundred I probably only bother to raise the scope to look at maybe five of them. I consider shooting distance two hundred yards. It's not that I am a great hunter, but I do have a great private place to hunt and it's just the way it is.
If you are setting on the side of a hill somewhere trying to look at several hundred or thousand acres on public land, would love to kill any deer, and are very excited about being there then binoculars could certainly give you an extra step to go through before you made a mistake.
As far as the guy capable of making long shots on motorbike riders, I'm not sure that he didn't just go ballistic because they messed up his hunt?