I'm not so sure about the
CoK windows being almost an afterthought - Kirk introduces both the portholes and shuttlebay in the same sentance, giving equal weight to both purposes perhaps (then again, he is being the King of Cool at this point).
The room in
MoG is indeed a proper room with standard walls making it distinct from the corridor, although the camera angles do not make this immediately obvious. The purpose of the room appears to be mainly engineering in nature, with the inspection port almost an afterthought.
The observation deck in "Conscience of the King" is rather clearly intended to be for observing the shuttlebay...as if this is the spectacular view Kirk wanted to impress Lenore with, the stars being almost an afterthought
All in all, it appears that characters simply aren't that bothered by stargazing out of physical windows - as far back as WNMHGB Kirk uses a desktop viewer to stare at the path ahead.
And I suppose, when you've got perfect 3-d holographic viewscreens, why bother with old fashioned portholes?
As for the movies and TNG, they are both different kettles of fish, produced decades later and with different production budgets and asthetics. But if I could make a final observation on the refit-E's numerous windows on the rim of the saucer (discounting the rec decks at the rear) - they're in the exact same position as the sensor array on the E-D. By assigning these 72 lighted areas the job of sensor equipment, it creates a design lineage to its descendant. If not - 72 windows is helluva lot!
The windows on the saucer rim have always been problematic in any case, being either very low down (on deck 6) or very high up (on deck 7). It's a curious design choice, but less so if they're
not supposed to be used for casual stargazing.
IMO, of course
