A few things to remember about Chinese weapons.
They haven't been used as weapons for a very long time, and traditions are hard to set aside.
China invented gunpowser, rockets and firearms, which became the weaponry of warfare long ago.
One of the purposes of flags, etc. is to provide a more confusing image for your opponent. If the flag provides a distraction and they say move towards it, it creates other openings to exploit.
It would take a real study of Chinese martial weapons history to know who actually used such a sword. Did the military use it, or was it developed for private usage, and then just hung around as time passed?
bushi no te isshinryu
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