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Just to add on further, some might say the difference is the intent on what the final product is advertised as. Pic rel is from First4Figures who went out of their way to describe it as a replica from the anime where a similar one existed in the first episode. Plus, if you buy the special edition, it has swappable arms for different options of "posing" since the arms articulate at the shoulders.
So intent can't exactly be the line divider either. Curious to hear what other people say in regards to this.