"I have a feeling that Rebound is a favorite with the writers."

Addressing this here, for clarification, but anyone can reply:

I just think that they have become too comfortable with Rebound frequently being the center of regard in episodes, and essentially having Cupcake and Patches "thrown in" to contribute a little to the plot, or even for the sake of just including the SSPC; a crude example of the latter being yesterday's episode aside from compelling Roxy to chase the rubber ball (which even still could be substituted with any other dog to an equivalent effect). Other than that, they didn't make or break its plot. They weren't as influential as their cameo in the episode implied.

Cupcake and Patches haven't done anything expounding for their character since their respective debut episodes, and I'm having conflicting emotions about the SSPC and how it is relevant beyond giving opinions and its members "just being pups." I'd really despise believing that the SSPC is just a recurring plot device of sorts, but save for Rebound, its members haven't really gone much of anywhere in terms of development. I am still eager to learn more about Cupcake and Patches. I'm both surprised and gladdened by the fact that yesterday's episode remotely focused on the adoption itself, but the SSPC wasn't a crucial part to its story, (seemingly) as usual.

It's difficult for me to justify my appeal for Patches (or Cupcake) when they don't have much that makes their character clear. It's completely understandable that they're just puppies and all/they're not really expected to have consistency in their character unless it's an extreme (i.e. Rebound's exuberant and talkative nature, Camelia's omni-appealing personalities, etc.), but it's very unfair introduce a conglomerate of three and only actually (continue to) utilize one. That seems really inefficient with regards to how characters are used, and it's what S1 had trouble with.

Furthermore, the premise shouldn't interfere as much as it does with main character development, but I'm not trying to complain; it'd just help the reception this show gets. I think there could be more episodes like "Accidental Pup Star" or "The Fraud Princess", where adoption is either a minor concern or even has no relevance to the episode. As much as I adore the adoption theme, having it jaded and used in excess really hurts this show and its image to those who have only seen one or two episodes. With that in mind, I'd abhor Rebound becoming a "thing" for this show; she could definitely be used less if the trade-off meant clarity for the characters still in question. At this point, I'm not just talking about Cupcake and Patches.

In conclusion, Rebound is slowly but surely becoming a peeve of mine regarding this show. Alternatively, the lack of character development where it's due also irritates me, especially when it'd be so easy to do with characters like Cupcake or Patches. Until they are developed, I see them as recurring minor characters, and I'm shamed to admit that. I can't call them anything more when they haven't been set forth as anything more since their debut. Nevertheless, it has the benefit of my doubt with future episodes, as I definitely hope that they are brought to better understanding. They are still just too obscure to believe otherwise.