People need to adjust to the presence of HFT. For many traders it breaks the model they may have used successfully for some time and they just don't want to go out and update their model.
As typically happens, they go crying to the government to stop the evil villains from forcing them to change the way they think about a changing world.
As typically happens, they go crying to the government to stop the evil villains from forcing them to change the way they think about a changing world.