Considering Fitton's one of my least favourite episodes, I don't see it at all.

To me Fitton was a jumble of tacked on character details and developments coming out of nowhere, loosely shaken in a worn-out carpet bag of lol-drinking, and incongruously ended as a soap opera. It's not my least favourite episode, and there are far many worse things in the world, but I wouldn't hold it up as a structure example to aspire to.