A bit of perspective for the "unpopular opinion"...
My first time to Disney was as an adult, 26. After a lifetime (to that point) of only visiting the local Six Flags, when I saw the pre-shows at WDW, and the presentation in general I was in awe. I couldn't believe that the line was part of the attraction, and set a tone. I was so used to metal railings trying to prevent line jumping, or serving as seats. I was enthralled with the queues at Disney, and the pre-shows were just magical.
So I ask, would you rather stand in a line with nothing happening, or is a pre-show "plussing" an otherwise mundane act of waiting? Unpopular opinion or not, this is a misguided thought. A pre-show (when not essential for safety instructions) is a way of entertaining people waiting in line, in addition to giving information. Aerosmith's RnRC... the pre-show gives the ride a story. Otherwise it's just getting on a roller coaster that looks like a car, in an alley looking room, going through a tunnel, and listening to Aerosmith music while you pass street signs for some reason.
I think saying a pre-show sucks 90% of the time is an individual who's probably been to Disney way too many times
, and doesn't remember that so many people are there for the first time and are seeing the experience with new eyes. Unlike you they don't know why they're getting on a car-shaped roller coaster, or whatever ride you're on. Not everything is about you, or me. It's about the masses.