Yet that example when you watch the scene is part of Charlie X's display of powers so it isn't clear cut, IMO.
The stage argument also isn't taken far enough. Are we really observing what was shown on screen or are we biased in knowing what the stage looks like behind the scenes and are assuming the unseen parts of that shot must look like the rest of the stage?
And that doesn't even address the scientific "absurdities" where TOS science is different from real life science. Start to draw the line here and there, make a judgement call to ignore certain onscreen stuff we find "absurd" and we'll be back probably where FJ arrived at, IMHO.