Probably not. But there's a million other things that someone with Whitebeards ability could be doing that he's not.
Oh, a wall of metal plates has risen up and sealed off most of the bay? Great, earthquake the foundations of the wall so the whole thing collapses into the sea.
Oh no, we keep getting individual people almost to Ace but they get knocked down just before they get to the top? Use your damn earthquakes to topped the execution platform.
I'm saying, either Oda is being a bad writer all of a sudden, or Whitebeard is holding back from doing all sorts of things for some reason. Since Oda is hardly ever a bad writer, I'm going to assume it's the latter.