Most animals, unless they don't take well to captivity (or domestication), have much shorter lifespans "in the wild" - just like people.

Snakes are eaten by predators in the wild. Snakes are subject to abnormal weather conditions in the wild. Snakes starve in the wild. Snakes get ticks in the wild. Snakes get diseases in the wild. And, snakes get injured by their prey in the wild.

Saying "snakes eat live prey in the wild" is true but I don't think it necessarily means its not dangerous.

I suppose it also depends on what you consider "dangerous". If somebody isn't bothered by a few small scars, and is able to get the snake proper care in case of an infection, then live feeding would be considered as dangerous to them.