Quasi implies seemingly or having a likeness to, that some people infer it to mean a later copy is arguably a quirk of usage. I doubt that the technique predates cameo cutting which has been around since ancient times, albeit not always used with glass, though of course, the Romans were skilled makers of cameo glass as shown by the Portland vase. likewise the Chinese appear to have started substituting layered glass for hardstone in their carved vessels at least as early as the Qianlong period, though the technique probably pre-dates this significantly.
I mention Oriental work particularly as the vase in question does show a very strong oriental influence, unsurprising given that it was produced at a time when Japan was exporting a great deal to the west & the French concession was well established in Shanghai.