I've watched a few of these (Theory vs Ricochet and AJ Styles vs John Cena) and they don't seem particularly good.
Theory defeated Ricochet (which is meant to indicate that he can deal with Karen's Acrobatics) because Ricochet spent 10 seconds slowly climbing up and then standing around doing nothing on top of the top rope, Theory elbowed it, causing Ricochet to fall down, then Theory grabbed and pinned Ricochet. I just don't see that sort of thing being helpful against Karen from what we've seen in fights, she's not gonna stand around for 3 seconds doing ****-all while he walks up and grabs her.
The AJ Styles and John Cena one was also a bit strange, AJ just climbed onto the top rope while Cena stood still, and jumped to throw a punch at his head, which he didn't dodge. If these are the sorts of "outskilling" that's being used for scaling, it doesn't seem like it'd be too useful in a fight.
To see how Karen compares,
here's a full fight involving her.
To annotate it, despite being incredibly sick, she countered a grab with a throw, included a feint with a barrage of punches, kicked when one of her legs was grabbed, there wasn't an opening for her opponent to counterattack. When a leg sweep was dodged by jumping backward, she brought her other leg down for an axe kick, which then swung up to kick his jaw, followed by her other leg to kick her opponent after he dodged that first one. Once this had her doing a handstand, she began to spin, kicking with each rotation. When her opponent tried to grab her legs, she sank toward the ground to kick his legs. After the opponent fell, she jumped on him, putting their head in a lock, and threw him using her legs. She jumped off after the throw, and immediately went back to kicking, kicking the opponent three times in one leap. After she landed, she immediately got up, backflipped onto the opponent, jumped off of him into a knee drop. When the opponent dodged this at the last moment, she twisted to land instead of kneeing the ground. Then, without hesitation, put the opponent in a sleeper hold. After she let go, and the opponent tried striking her, she head-butted him, then turned to strike a backhand into his temple.
If that's tl;dr, in short, she doesn't wait around, she's constantly going for opportunities, launching attack after attack. And when something doesn't work (choke hold isn't choking them), she quickly stops and tries something else.