I think the purpose of the statement is just a seniority thing, Nigri influenced a lot of women to get int cosplay, but I agree, she is barely classifiable as a pioneer of truly lewd cosplay, infact peach has probably influenced more down that avenue.
Nigri pretty much only does Cosplay content. Peach does Cosplay, Gym, Slice-of-life content.
I don't get how @BrickDuck thinks Peach is a copycat? Please sir, explain.