Another thing I got wrong in 1980: I strongly disliked the idea of Leia letting that disreputable scoundrel seduce her, and I was convinced that Luke would turn out to be her true love.
Hills goes on to give detailed explanations of the three: why "Mystery and Curiosity" is the lowest-level technique, pointing out at the end of its section that it puts the writer "into competition with the reader instead of partnership"; why "Conflict and Uncertainty" is the next level up; why "Tension and Anticipation" is the highest level.
That's a neat way of looking at it. Partnership with the audience vs. competition. Of course, a friendly competition isn't always a bad thing. The appeal of the mystery genre to its audience is the game, the competition between the writer and audience to outsmart each other. SF author Hal Clement said that hard science fiction was a competition between the author trying to convince the audience of the speculative science and the educated reader trying to spot the flaws. But that kind of consensual competition, where both sides seek out the mutual challenge, is arguably a form of partnership too. The readers/viewers know what they're getting into and seek it out because they welcome the challenge.
Still, it shouldn't be the default for all storytelling. I like the idea of a partnership with the audience, guiding them on a journey through the story, and I agree that just hiding information from the audience is a cruder way to generate a response than creating real uncertainty or tension about the outcome of an event.
I know that it annoys me when a story deliberately misleads the audience in order to create artificial tension. I hate that gimmick where the camera cuts between, say, a group of pursuers closing in on a door and the pursued character inside a closed room staring nervously at the door, and you think the pursuers have cornered the character, and then they burst through the door and find the room empty, and it turns out the pursued character is in a different location altogether and was never in actual danger of being discovered. It's a cheap trick, using deceptive editing to create artificial suspense, and it's way too overused. There are better ways to create genuine suspense, ways that play fair with the audience.
Similarly, I don't like the idea of leaving a story unfinished and using a cliffhanger to lure the audience back for the next installment. It feels like holding the rest of the story hostage to force the audience to come back. I think a better way to get the audience to come back is to give them a complete story with a satisfying ending so that they
want to see your next story. Of course, I've used cliffhangers myself in my book series (particularly my
Tangent Knights audionovel trilogy, which was emulating the serialized format of Japanese superhero shows like
Kamen Rider), but I always give each installment a resolution of its own main story, with the cliffhanger just being a tease for the next stage of the story. I don't just stop in the middle of an ongoing story with nothing resolved. I answer the current story's questions first and then pose a new question to spark curiosity about the next installment.