What point do you think you're making here?

A prefix isolates a wine install. Bottles intentionally pushes users into a "one per application" strategy with Wine prefixes, isolating the wine install and deps for that application from other applications. Generally a great strategy for using Wine, even if you'd prefer to do it yourself.

And Bottles is a much more convenient wrapper compared to doing that manually and managing them yourself (which I've also done).

Bottles also distributes the instructions to configure a "generally working" prefix for a large number of desired applications.

If we go back to the docker analogy - they're giving you the Dockerfile, not the image. I'm not actually convinced that's such a "stark" contrast. If anything, it's semantic peanuts (and mostly for legal reasons given the popular applications tend to be copyright protected games, rather than OSS software which makes up most docker images).