I think a lot of people are reading the presentation advice and thinking "yeah, I work hard for good presentation too," without realizing that the reason content hasn't even been mentioned is that the author really is describing ML accurately.

I think it's ultimately due to a lack of theory, which creates the expectation that the results from trying an idea will be a random draw. From that point, you get the behaviors of trying as much as possible and taking each attempt as a fixed object to then go try and get over the threshold.