I recall that this was common in "The Moon is a Harsh Mistress" but don't particularly recall it elsewhere in Heinlein.

On the categorizing SF front I'm going to be a grouch and say that such stuff usually ends up being just elaborate codes for "stuff I like that they should publishing more of" vs. "Stuff I don't like which they should stop publishing". With a big side of variable constants like the "which was accepted as accurate at the time it was written" clause which only applies to stuff you like and not to stuff you don't.

I'll leave out my rant on the good/bad division is often based on stuff external to the story like the author's alleged personality defects or alleged politics. Or did I just put it in anyway? Oops.