That's true of course but at least it's a step forward. Because this is a quartet, expecting all the characters to interact equally is just asking for disappointment. At least we got something this episode, even if small :s
I'm totally used to disappointment; I even predicted that interactions among the XY cast wouldn't be very diverse and I was half right given that Serena doesn't talk with Clemont much in general and Ash and Bonnie's interactions have been pretty sparse so far. I'm glad that Serena and Bonnie are close though. I thought the writers would over-exaggerate their bond, but they've handled it well so far.