Cake is an imperative and task-based way of expressing builds. In my opinion, it truly provides its benefits when you have a complex build pipeline. The added value is that any C# developer can understand and contribute to the build process without needing to master bash or PowerShell scripting languages or figure out how to use declarative DSLs like GitHub Actions, AppVeyor, or GitLab CI
I agree that there is some form of advertising (at least sponsoring) associated with the article, but on the other hand, the point the article is making remains valid and knowledgeable.