>>10430843No.
McFarlane seems to have a hands on approach and just wants the figures to be bigger than X, because he believes kids don't care about scale and wants the characters to stand out like they do in their comics/cartoons/videogames/movies/etc.
There's a couple of interviews where he's talked about this.
IT's very much a comic book artist viewpoint and he's not wrong.
Also, it's not hard at all to ensure toys are sculpted to scale. When hand sculpting was a thing, they used to use bucks, which were standardized wooden pieces they sculpted the body on. They stopped using them sometime in the 90s and 00s, but since sculptors aren't dumbshits, they were able to continue sculpting toys to scale.
With computer sculpting today, its even easier and we've seen companies scale down/up sculpts used before in different scales.