That happened a long time ago. Centuries ago. Well, maybe not the plastic - that's only within the last few decades. But if you compare the quality of genuine antiques, only the really high-end stuff made today comes close. Close, mind you, not always as good.
That being said, you cannot shape language. I would love to rectify the use of 'broadsword' for dao in America, but it's just impossible to do so, even for me sitting in control of the largest English language CMA publication in the nation.
The topic of proper labeling was somewhat addressed in Wushu Needs Name Rectification by An Tianrong, although that was directed to more general terms than weapons. We ran it because it broached an intriguing topic, but not because it was an achievable goal. Americans will say what they please - language is a virus.