Interesting bit of info, thanks for sharing. Sadly for them, I think the genie is out of the bottle on this one; while I've seen a few people use alternate names, most call them QR codes.
In the Chinese world, it's still called the equivalent of 2D code in Chinese(二維碼/二维码). The original variant QR Code(QR碼/QR码) are used but to the best of my knowledge they are quite mixed together in terms of usage.
I think the mainland Chinese are more inclined to 2D code by the interactions with them in the past.