I agree, and I am a US physician! Curiously, their paper was sponsored by an entity that funds cryopreservation research. The paper asserts that those surveyed were general practitioners, but the actual survey itself had quotas for various subspecialties. The survey also has an introduction section that frames cryopreservation (not used in medicine) in the context of hypothermic protocols (commonly used in medicine), which would seem to lend it some legitimacy. But that isn't a fair comparison. Only critical care specialists and some surgeons and anesthesiologists have much experience with therapeutic hypothermia. GPs would typically have less experience and might not readily notice the inequivalence.

I can't help but wonder whether they changed the protocol after the survey was designed and only interviewed general practitioners. Or, worse, perhaps they selectively excluded a portion of the interviewed population.

I worry that there's a selection bias: physicians who even bothered to respond to a survey on this topic.