This episode's problem wasn't that it was a bad episode, because it wasn't. No, this episode's problem was that - being the spiritual successor to "Holy Matrimony" - it had an incredibly high standard to live up to. "Holy Matrimony" was one of Kanto's greatest episodes, and arguably its funniest. It doesn't help that James' past is so unsorted and inconsistent. Still, we got some nice light on an existing past of his, and that's his relationship with his frequently-mentioned fiancee.
Like I've said before, even though Pocket Monsters is constantly bringing in a new audience, occasionally the writers will throw veteran fans a bone. And since we're a minority of the current audience, we should appreciate these moments. I'm a bit disappointed Jessiebelle (We should really agree on a spelling for her name) didn't appear until the latter act of the episode, but as Heracross mentioned, the flashback sequence made up for it. I did love the crazy butler, and even though it would have been nice to see James' parents (in a non-flashback), he was an acceptable substitute, especially how he Superman'd through the floor. And no matter how rushed you think the ending was, it was admittedly funny.