No one has been charged, thus no trial yet, and no trial court. What you mean is not the trial, but just a temporary custody hearing. One where the state got to present it's assertions, but the other two sides, children and parents, got very little chance to refute. No one got to judge that evidence, except the Judge who was over ruled by two higher courts, who said the evidence was insufficient even for the limited purpose of the state retaining custody of the children.
The other folks involved will get chances to refute later, as they should have in the first place. They'll get it again if and when there are criminal charges and criminal trials.
“Additionally, in the trial court,”
They are not my words, they are the words of the Judges.