Annotation-based methods are crippled by the limitations of annotation placement. For instance, you can't "annotate" an expression, which is where you will ten

Annotation-based methods are crippled by the limitations of annotation placement. For instance, you can't "annotate" an expression, which is where you will tend to see boilerplate of the type needed for partial application. (Because partial application is easiest emulated as a lambda which routes to the target function while providing fixed values to parameters.)