True, but one of the reasons I created this poll was to distinguish between the two groups you mention in the bolded. The debate in the main thread centred on whether a person could understand the whole story, including the reverse-psychology aspect, without prior knowledge of the story. As far as the results here go, a slight majority of respondents (currently 55 out of 106) could not (or believe they may not have been able to) infer the full plot from the ride alone.
A big caveat is that the "I (think I) already knew the story; certain details may not have been clear to me otherwise" group (which is the one I belong to) is answering based on a counterfactual assumption. Perhaps we would have been able to deduce the narrative unaided, even if we feel otherwise. [ETA: I also see from
@Sir_Cliff's post that some of the people choosing this answer aren't who I imagined when framing the options; that may be my fault.]
I'm happy to acknowledge that the most popular answer, accounting for 50 out of 106 responses so far, remains the first: "Pretty much all of it, including Br'er Rabbit's use of reverse psychology." But that still means that only about half of the members of this forum (or those who've answered the poll) claim full (or nearly full) comprehension of the story based on the ride alone.
Let me end by reiterating that I believe that the narrative in its basic outlines was clearer than not. All one really needed to comprehend was that Br'er Rabbit was fleeing Br'ers Fox and Bear, and the poll indicates that a majority of respondents understood that much at least.