[idf00]

IMO it's not a "structure in one place" vs "more composable so more spread out"

In HTML, you are much more likely to have things in one place because you don't have great options otherwise.

In Python, you can choose to keep things in one place and not compose them, or you can choose to refactor to compose them if that makes them better for your particular use.

It is, however, definitely true that with the extra option, you have the option to refactor it so much it's less readable. How much to refactor and split things apart, decentralize, DRY vs how much to keep things in a structured place can be a hard thing to figure out!