Because you asked what intelligence from Pearl was on display in this fight, and I took that as you wanted me to prove how Pearl is more intelligent than the Holo-Pearl's. I was just trying to show that Pearl has a tendency to recognize quick ways to beat an opponent and exploit their weaknesses, the same thing Pearl did there. That "Serious stance" is her recognizing the move they were going for, and remember she took that serious stance with her eyes just a few seconds before that and still got caught off guard by Steven blocking her blow. (She even emits an audible gasp.) She clearly wasn't being super serious in that fight considering how many times they caught her off guard. (Connie's initial charge and flurry of blows got her walking backwards, Steven blocking her blow, Connie sliding under her, all clearly caught her off guard by the expression on her face.) She only beat them because they went in for a sloppy move that she could easily take out, it's much easier to knock someone away when they're in the air and not when they're on the ground isn't it? Further proof that she wasn't being serious is that after she beat them she was breathing heavily and she was in a state of distress, (hence her emotional breakdown.) She simply wasn't ready for them to attack her. Also, Steven taking them out means they aren't on Pearl's level, what? Steven is 6-C, possibly 6-B in Season 2. He definetly had enough power to take out a High-diff Holo-Pearl, even if it's not one exactly on Pearl's level, they'd still be very close. Again, I proved above that she was fighting High-diff Holo-Pearl's. The High-diff ones have red glowing eyes, and the lower diff ones have blank eyes. Look at Steven the Sword Fighter, after Steven hits the Level 1 Holo-Pearl with his toy, it switches to advanced mode with the red eyes and immediately tried to kill him. They had those same eyes in Sworn to the Sword and also clearly tried to kill Steven and Connie. (Twice they attempted to slash at them from the back.)