Comment by mapt

Action blockbusters are a product of marketing structure, financial investment strategy, and limited venue space; There is room to see one movie with the family during the holiday weekend, and a studio would find it absolutely wasteful to produce something that isn't Die Hard, if it's already marketing Die Hard for that weekend. An independent theater with the space (which is most everything in the US from 1948-2020 per SCOTUS) might promote a competitor's action blockbuster for that weekend as well, but is probably better holding off until the next holiday weekend depending on how many hundreds of millions of dollars have been pushed into the marketing pipeline. Better to be the Rom Com alternative. The market favors complementarity if it isn't competing on quality. There are only so many tickets that are going to be sold for that weekend, and the overall market size for that weekend isn't as elastic with regards to quality as some other industries. It is elastic with regards to overall marketing budget.

Casting is absolutely a part of marketing & investment strategy here, even as it doesn't necessarily lend anything to the story itself.

In a less psychologically manipulative, less monopolistic arena like streaming, or anime distribution, there is room for a much greater variety of narratives than the two categories you highlight.