Asymptotic cost of 2023/033: Fast amortized KZG proofs

The paper’s abstract establishes that “In this note we explain how to compute n KZG proofs for a polynomial of degree d in time superlinear of (t + d). Our technique is used in lookup arguments and vector commitment schemes.”

Is that a typo and should be “time superlinear of (n + d)” or am I misunderstanding completely?