I agree. Practically everyone I know views Universal as a "maybe once a year" park because there's nothing dynamic in terms of actual rides. Barring Wizarding World and maybe SLOP, practically the entire upper lot is a "once and done" experience: KFP, Minion Mayhem, Simpsons... even Animal Actors and Waterworld don't necessarily provide anything new once you've seen them. Same with the Studio Tour at this point, really. First-timers/vacationers are going to view it all fresh, and diehard AP holders are going to come regardless, but that huge population of general parkgoers in between want dynamic ride experiences, which simply isn't possible when the bulk of their day is just... sitting watching something in front of them. Sitting for KFP. Sitting for MM. Sitting to watch a show. Sitting for Simpsons. And to a degree, sitting for the Studio Tour.
Even the lower lot on a good day can be finished in an hour, and even then, I've heard people lament how Mummy is way too short (which it is) or how Transformers - despite being an actual ride compared to the upper lot stuff - is just not that exciting anymore because it's just another screen-based experience in a park too full of them as it is.
Universal could throw a new, crazy event each week to try to draw people in, but it'd still be like swapping paint on a used car. It may look different, maybe even flashier, but behind the wheel, it'd still be the same fundamental experience, one where no amount of food and drinks or special theming and so on would hide the fact that throughout the day, guests would still be experiencing the same old screen-based stuff that burnt them out and keeps them away in the first place. SLOP was a good step in the right direction, and SNW is going to be a nice shot in the arm, but I'd imagine only for so long, when the rest of the park remains the same; hopefully after it's open, they start going all in on what's next, because it's long past time.