UML241 — Presentation options of statemachine transitions: Figure 15.45 is ambiguous or wrong

Figure 15.45 of superstructure v2.3 illustrates the representation of deferred triggers on states. The transition between states "Get Cups" and "Pour coffee" specifies a trigger "light goes out" which is also identified as a deferred trigger of state "Get Cups". Does "light goes out" trigger the transition, or is it deferred? If the figure is not wrong, it would probably be helpful to add a comment in the text (note that figure 15.45 is not referenced in the text).

Indeed, this is a very confusing example and is also wrong as the submitter points out. Also, there should
be some explanation of this diagram.
Replace this diagram with a simpler one and add some explanatory text.