Nitpicking, but 0° to 1°C isn’t cryogenic, merely deeply hypothermic.
Therapeutic near-body temp hypothermia is often used post-cardiac arrest, while recovery from hypothermic states as a result of misadventure has often been documented.
Awesome article and glad you pointed towards the YouTube video, where Lovelock was interviewed, which ultimately answered my question: can Cryogenics be used to freeze humans? According to that fascinating and interesting video, answer (for now) is no because "it's partly a matter of how quickly you can get anti-freeze agent to diffuse into the cells ... humans too big."