> It's almost like it's used to preemptively set up a fight, with responses similar to yours, like "Well, you're not paying attention" or "How could you not know?".

A stage was set where people can easily be placed into a box, created by an intentional lack of clarity. They can then be easily attack for not seeing things "as clearly" as they should. It's not possible for anything positive to come out of an exchange built in that context. By that, it's not useful, unless your goal is actually to create a negative exchange.