Well, it can’t be that in the context of the story, because as it’s presented, they give this test to pretty much everybody they train, including Jessica (although Mohiam clarifies that “seldom” to men).

Don’t get me wrong Paul and all the other Dune protagonists don’t need much encouragement to go supersaiyan on your ass, and this often comes in similar circumstances, but this particular first example seems to mostly be Paul taking his finals and things getting intense because his examiner turns the dial to eleven. In the book it isn’t even that big of a deal, he just says the litany once, has the vision of his hand getting melted for like a paragraph and Moiham goes “phew, I went a bit hard on you there for a second and poofing away”.

Also, this doesn’t relate to anything else, but I went back to find the passage for this and man, both her and Paul are such little shits to each other in this bit. He calls her “old woman” and threatens to have her killed, she mocks him for being so privileged he has to know about poisons as a a teenager… They’re so sassy, and neither movie quite nails that part.