only if you abuse the abstraction of language to impose restrictions on reality that don't exist. people who would have been declared dead 50 years ago are now resuscitated routinely.
What does that have to do with his point? The resuscitations you're talking about are not part of a continuum of improving outcomes for people with massive total systemic cellular damage from freeze-thaw cycles.
I don't think anyone who's ever been declared "dead" has ever been "resuscitated" more than a year after the fact, at least not since we've been able to distinguish a comatose state from death.
Fine, there's a slim chance it's theoretically possible. I openly conceded that. Multiply that by all the other slim chances involved, though, and it gets even slimmer. It doesn't balance against the extreme costs unless your decision-making process is extraordinarily selfish.