OK, now I feel dumb, I didn't know there was a difference between science fiction and sci-fi. What is it?
You know the bit in
Life of Brian about the People's Front of Judea vs the Judean Popular Front...?
But seriously... some fans define "Sci-Fi" as a derogatory term and/or reference to "soft" science fiction/fantasy/space opera versus proper "science fiction" (and the definition of
that may vary from anything with a space ship in it, through anything with a
slower than light spaceship in it, to something that only deals with the social impact of real science five minutes into the future and/or is one citation away from being accepted by
Nature). Others don't care as long as the beer is good. But, hey, you gotta change the jargon regularly so that you can spot the mundanes (or is that "muggles" now?)
I take your point, but think you may have missed mine. Modern (pseudo-) documentaries use VO narration with compelling visuals to move a story along. I believe that could have worked better for the Foundation saga, although it would have reduced its ability to compete with GoT/MCU.
They're probably frightened of repeating the Orson Welles'
War of the Worlds radio experience...
The only one like that which I've seen is, I think,
The Beyond - a one-off, low-ish budget film on Amazon Prime which was... interesting, but not brilliant, I thought. That and a couple of episodes of
Babylon 5 that were presented as news reports. Seems quite difficult to maintain the illusion without running into "how would you get footage of that in a documentary?!".
I think you hit the nail on the head with GoT - which is, of course, on record as a success to emulate, except they just kept piling on more and more plot threads and characters without really advancing the main story until any ending was bound to disappoint.
American Gods was another one they messed up like that - lost all direction after the first season and I lost the will to watch halfway through season 2 when I found that they were going to pad it out to yet another season... heck, it was only one book, and not a doorstopper at that...