Why didn't Garp just use Geppo to go away?
People were about to get saved
He took the air
There was absolutely no need to remain there
Also...
If he really wanted to, why didn't Aokiji pursue the ship with his Logia powers, hell not even pursue it, but just use the Ice Age to freeze it? The move can freeze a portion of ocean, it could surely reach a ship that even Pizarro's DF powers could reach
Come on everything is so forced