Asgorath
Explorer
So you don't disagree that I've proven that the disengage action has a duration that is less than the duration of it's effects. You just think that it's a meaningless piece of information to have?
Exactly. The rules say you can move before and after your action. The Disengage action provides an effect that lasts until the end of your turn, which in my opinion means the effect is separate from the action itself. Thus, the duration of the Disengage action is irrelevant, the only thing that matters is the order of that discrete element in relation to other discrete elements in the ordered list. Movement before the Disengage action provokes an OA, movement after does not. The duration of any of those elements does not change those simple facts.
Edit: And to be clear, trying to impose a duration means that you can have a hard time wrapping your head around what it means to split an Attack action with movement or other discrete elements like a TWF bonus action that is triggered by a single weapon attack. Thus, we can simply ignore duration of each discrete element in the ordered list, and process them one at a time in order.