Prediction: The showrunners will reveal Moiraine already had her angreal. And whatever she is doing can be easily explained. Honestly it would make sense for this version to have the angreal. I hope they address this.
Is it a cop out? I don't know, but for real, they need to explain Moiraine's ability. And bring that storyline from book 13.
They need to establish she IS NOT as strong as the girls (Egwene, Elayne, Aviendha) let alone Nynaeve! They need to make it clear because the audiences are not aware of it at all.