The point was that Shao_Long's claim about the Okinawans punching through armour was partially correct, but irrelevent, because that armour was made from bamboo, not metal. In other words, your whole "punching through metal armour" argument is based on a misunderstanding of samuri armour. The point about the wooden armour was simply a side note, to point out that the Okinawans weren't the only ones who learned to punch through armour.
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