If I understand you correctly, you're talking about writing with the reader in mind (I haven't seen the video yet). Personally, in fiction I think it's hard to do without betraying yourself a little. I write because I want to say something that's important to me and writing it is a way of getting it out. I only have the reader in mind when editing. Sometimes my mind wanders to a story that makes sense to me, but not necessarily to the reader. Regarding what I read, I don't have preferences either in the genre of the authors or in that of the characters. Yes, in the story. Btw, the closest I come to a romantic novel is with Jane Austen and the Bronte sisters.