I think there may be some confusion by some as to just what Yeoman is and it's usefulness. My opinion is that Yeoman strives to improve your workflow and tooling in front end development.

The core team has engaged the dev community and identified how people are working, what tooling they use and what pain points they experience. Yeoman serves to centralize workflow and tooling and ease those pain points. The generators are very useful as well and extensible.

Again, Yeoman may not be right for everyone but I would be interested to know more about your workflow and tooling and contrast it to some of the concepts pursued. This feedback would be useful to those considering Yeoman.