This assumes that “reviving” someone, by somehow recreating activity from a preserved brain that has previously fully ceased all activity, is somehow extending/continuing that past consciousness (thus preventing death), instead of creating a similar but separate one (failing to prevent any death). Essentially, the “teletransportation paradox”, just with different flavoring for why/how a working brain is being “destroyed” and later “recreated”.

Is this considered a non-issue somehow?