Well, some important points have definitely been refuted, on the insulin.
The idea that the insulin - C-peptide ratio meant poisoning has been proved wrong for newborns.
The idea that the test couldn't react to interference and throw up false insulin results has been proved wrong.
So whether the tests were accurate or not, the way that the jury was told to interpret them wasn't accurate
And those two are on data and research produced independent of the new defence experts after the trial. So even without taking anything those experts say on trust, the insulin evidence looks very vulnerable to challenge by now.