"Finch realised what he really wanted to do; to "make things people could both use and enjoy"." Yes, that.
"We don’t want readers to “master” our inklebooks: we want readers to nurture them. The stories they contain are precious, fragile things, that like any good story might turn at any moment." Yeah, this – moving away from "what happens" to "how it happens" as a tenet for interactive fiction.