Actually they aren't wrong. SR7 is a cookie cutter artist, he recycles artwork for Something Unlimited. He's been caught doing it and has even straight up pointed out recycled artwork that people missed. There's probably four body types he uses as a basis for all of his characters. Small and slim like Terra, slim thick like Batgirl, Stargirl and a few others, stacked like Zatanna, Black Canary, and Starfire, and super stacked like Wonder Woman and Superwoman. Most characters fit into the middle categories and you're just failing to notice the recolours.