No.
What Power Girl is saying here is that real heroes weren't retarded enough to blindly follow Luthor, they just pretended to follow the orders.
He honestly believes that just because he's president we'd just blindly follow his orders.
Neither Stewart nor Pierce even tried attacking Supes and Bats ----- so no surprise PG is saying they can be trusted out of that group.
Stop being so hungry for feats, man.
Atom, Force (especially Force) and Starfire --- those three we can be sure about, that they weren't pulling their punches.