I would be really upset about subverting the artistic intent of the auteurs of B7 if I felt they really HAD one. For instance, they actually paid Trevor Hoyle to do novelizations that are not only unreadably bad but quite sloppy about canonical details. And take (my) A:ATA (please!) --although its existence doesn't obligate Paul Darrow to like, approve of, or believe everything anyone might say about the series, it does prove that he believes that departures from canon can be legitimate in fanfic.
I don't think of B7 as a personal artwork, but rather as a factory product, like Jaffa Cakes. That it, it's better than the usual run of packaged confectionary products, which is why it has attracted and kept loyal fans over the years.
Some people believe that the Jaffa Cake cannot be improved on, and consume it in isolation. Others like it with coffee, a glass of milk, or for all I know a pint of ESB.
Others, however, modify their Jaffa Cakes. There's a large group that favors splitting them and adding a layer of whipped cream, with smaller constituencies for, e.g., peanut butter and raspberry jam, and minority interests in, e.g., Gentleman's Relish. Not to mention h/c Jaffa Cakes (battered) and BUARJC (battered AND deep-fried).
The creator of the recipe did not envision anything being added to them...but is not harmed by the subsequent unplanned uses of the article.
-(Y)