Yeah Abrams’ mystery box method only “works” while watching a show for the first time. But it inevitably leads to a poor conclusion, and thus a negative re-evaluation after the fact. Because the key aspect of how Abrams does it is that he doesn’t care what the resolution to the mystery is. So it hasn’t done the legwork to make the mystery feel satisfying after-the-fact. The best mysteries have reveals that in hindsight seem inevitable, which means there’s evidence that could have been used to infer it earlier, as well as red herrings which end up having adequate alternate explanations. If you decide the answer to the mystery after the fact, that’s never going to happen. Especially if you pick your answer—as he is known to have done—based on what audiences didn’t guess.