They get to argue their case extensively in written form. The oral arguments are really for the justices to get to ask questions. Even before this change, ther

They get to argue their case extensively in written form. The oral arguments are really for the justices to get to ask questions. Even before this change, there were very tight time limits on lawyers for oral arguments. There are also far, far more cases asking to be heard by the Supreme Court than they can actually hear, so they need to keep the time limits short.