The problem is that for a trial to be fair, it should be fair to both sides. Handing the defense all, but muzzling/limiting the State is not by any means fair. Yes, it probably does cut down appeal issues if everything is handed to them on a platter, but it also interferes with justice for the victim. Truth and justice is what the goal is supposed to be, not a good appeals record for the judge.
Trust in Juan. He knows the score.