I don't know; I mean some of those Force powers are way more out there than a "Scream Shield." And I've read that book at least twice (probably 3 times) and I'm pretty sure she didn't make a shield with her scream, she just used the dark side to create a shield and was screaming as she did it.
I would have to look it up, but I'm reasonably sure she thought to herself that as long as she kept screaming she knew she'd be safe.
The mental imagery that gave me invoked an " IT'S OVER 9000!" image in my head, and that kind of shenanigans definitely feels like it only happens in the old republic books.
There's a great scene in Revan where he says, "I am Revan reborn and before me you are nothing." Which is awesome, but again, the outcome of that line is not something I would expect to see in any New Jedi Order era book.