Erran had definitely been expecting Simms' meltdown and Oliver dragging him off the stand, and he was glad that Juno got her chance to talk back and say something to the court other than the bare facts of her testimony. She'd said what she needed to say and Simms hadn't been able to pick at her directly. This has to be enough. It has to. No way would anyone think he should be set free after all this.
He definitely hadn't been expecting Cecilia to call him up, but when she did he got up to take the stand as well.