Exactly, this is the same as saying Redux has two methodologies, the "setter system" and the "event system"; since it wasn't that well documented initially does

Exactly, this is the same as saying Redux has two methodologies, the "setter system" and the "event system"; since it wasn't that well documented initially doesn't mean that the setter way was ever recommended (it's not). In fact if you watched the Flux youtube talk, something highly recommended to learn the philosophy behind Redux, it was pretty clear. Edit: here's the video (from 10:20) https://www.youtube.com/watch?v=nYkdrAPrdcw https://www.youtube.com/watch?v=nYkdrAPrdcw