There's one element in there I found really interesting, that Kodama really likes soap opera type stories. I wonder if that's one reason why western fans seem to hate the series so much, while it's clearly popular enough in Japan to keep running, get an anime, have other mangaka doing fanart, etc.
Soap operas aren't really the same sort of story as romance, even though they deal with a lot of the same subject matter. There's a lot more of what folks here might call "forced drama", cheating, and tend to be a lot more convoluted. Most yuri we see is romance (well, or porn), where it's about the conflicts the main couple must deal with to get together.
I'd be surprised if much of the western yuri audience watches much in the line of soap operas, whereas unless I miss my guess, the Japanese yuri audience has more familiarity with them. So there's a much different expectation for what makes a good story in the first place.