> So yes, eugenics was pretty much an integral part of the premise. IQ bubbles even pop up on the screen during those scenes, just to remove any shadow of a doubt.

Is that really how we use the word "eugenics", though? That scene you refer to explicitly explained that Natural Selection does not necessarily select for intelligence.

So while some people are calling it "Eugenics", it's what we more typically call Natural Selection, Evolutionary Pressure, etc.

Eugenics implies that the selection criteria was not natural. The scene you mention makes it clear that, in-universe anyway, the selection criteria was entirely natural and not a pressure imposed by humans.