The article starts off well, but, like almost every single other article ever published on the theory of react, it stops short of discussing the use of state outside of a toy example.

Redux and state in an app with multiple components is given one or two sentences at the end.

Discussing where to apply state (to containers?) Is given one or two vague sentences at the end.

Meh... ...disappointed. The writer ia just rehashing the same content from other articles. Albeit somewhat less vague.