That's a fair take. I didn't see her as mostly there to punch things (That was her role in the first two arcs frustratingly), as she really only had successful fights in the last two issues. Her entire story in #950 (minus a certain line about Harper) showed a great understanding of the character IMO, and her arc was well executed, her interactions with Christine in#955 being a far greater highlight than the fight in the same issue, ditto for her interactions with Shiva in the following issue. As I said, putting most key traits on display. Most. Some things are still missing. But for the first time in over a decade, this really felt like the same girl who could both enjoy a game of roof tag, and who was more than willing to take a bullet for a thug she was fighting. He even got the detail about Cass being a total slob right, so he clearly DOES know about her more quirky traits.
I do agree with you about character interaction though as far as the main cast is concerned. Because of how the arc was structured (Plotting was DEFINITELY this arc's weak point), JPV and Luke were taken out from the start, Kate despite being involved longer I don't think spoke one word to Cass, and her interaction with Bruce did more for his characterization than hers (Though their "fight" in #953 was still a really good scene), and while the Cass and Basil friendship is great, we really didn't get any new insights into them from their scene in this. (Although the fact that they outright stated Cass is the only one who likes him, and doesn't just see him as an ally does say something about her in my eyes.)
We'll find out in time, but as I said, I think we've gotten to a point where she'll be able to interact more freely with the rest of the team now, and I hope we get things like her dry wit, her intelligence, and general playful nature.
That all said, what I don't want to see for a LONG time is another emotional moment with a Cass hug. They've mostly been nice moments but my god have there been a lot. Someone on Tumblr compiled all the Cass hug panels together, and the total number is ridiculous.