As long as it's not regurgitating it wholly then why is there a need for a license?

If someone uses the phrase "and with that there's a tremendous implicit shift" for the first time in a copyright text, then after having read that my brain regurgitates it as I'm writing my own text, and I include that phrase. Is that plagiarism? Because it would be a ridiculous precedent to be honest, regurgitation is most of what our species does.

I feel like, as other have pointed out, modern models learn in roughly the same way we do (but with very limited scope) and that idk, it's a shock to people that we do the same things as these models do? But because it's a model doing it and not a person it's intrinsically bad or something