I would suggest that the fact that the Dragon Reborn's death didn't occur until several, several years after the initial diagnosis the foretelling of the Dragonborn's death was no more important than the foretelling of Joe Schmoe's death who may die today or die 15 years down the road. Also, in as far as the death sentence for channelling, I think he moved to acceptance rather quickly on that one and was more concerned with keeping the damage solely to himself and not to other people.
While I agree with the rest of your points, I would like to point out that Rand's death has literally been fortold for centuries. In fact, even if he wasn't the Dragon Reborn, he could still channel, which would also be a death sentence. I don't think its been abstracted that far.
I wonder how well it conducts electricity?
There could be a lot of uses depending on the answer, whichever way it goes.
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