Well, I love it. In 10 years, Bruce and Shiva will slow, Cass will be more experienced and at the peak of her game, and there will be one person who is the most badass fighter in the world. It thrills me to no end that she has her own form of kryptonite. Sure, this is a "catastrophic limitation", but it just closes a lot of doors and makes her have to think on her feet and have to go with the rest of her options. The added balance makes her so much more interesting, one of the most unique people in DC or Marvel. I also think she should always be this terse.
On the other hand, let's not forget her communication skills are actually awesome, just not verbal. She should always have abilities like lie detection, perception of moods and feelings bordering on actual mind-reading, and decent bullet-dodging. Also, the shipper in me wants to see her on a first date with someone nice (so I can scratch her from retro's List of People Who Need OTPs ASAP) where the normal awkward first kiss goes very smoothly after Cass determines exactly when it's starting to happen and takes the initiative.
As for Babs losing it and using the "S" word... I don't know, it's a big slip for Babs. Ignoring that part, I like the way Babs apologized, and I definitely like that it's another display of the normal human feelings that Cain failed to brainwash away during the lifelong training. Maybe if it wasn't Babs, but someone else who Cass cares about and who puts her foot in her mouth now and then...
Now, I want you to empty your mind... Empty your mind.... Empty your mind of everything that doesn't have to do with fine diningfighting. Fine diningfighting and breathing. XD