One thing that I have run into with the writers that I have been dealing with is the varied definitions of story-writing terms.
I have seen "Protagonist" defined as "Protagonists move the story forward", "Protagonists are the ones that change the most”, "Protagonists are the ones that the audiences identify with the most", "Protagonists chase the story goal" etc.
Try having a reasoned conversation with someone when you have differing definitions - it's a nightmare!
Then Chris and Melanie try to pin the definitions down so that everyone is speaking the same language, and then they get accused of being "elitist", confusing the theory with overly complex terms.
I don't think you can win either way...