I had the same impression. Whatever it is about, it is not about

> Why The Great Gatsby is the world's most misunderstood novel

The first thought I had when reading the headline was: by what measure?

I wanted to give the benefit of doubt, but there is not even an attempt to answer the question set out at the beginning.

Instead, like you say, somewhat of an advertisment for later derivations with no clear idea of where to go.

For me underwhelming.