I'm pretty sure one of the characters explicitly says near the beginning of the film that it's fast vs. slow that makes a difference. It's not about the youth

I'm pretty sure one of the characters explicitly says near the beginning of the film that it's fast vs. slow that makes a difference. It's not about the youth these days, it's about Hollywood -- the fact that Hollywood movies are more commoditized and generally "samey" than previously is a pretty well-known development. It's an industry thing, not a culture thing (or, well, it may be driven by cultural changes, but I don't entirely believe that, and don't want to speculate anyway).