I’ve always felt that was a mistake that he removed his mask during interrogation. It was unnecessary. It took away from the scene with Han at the end. That would have had MUCH more of an impact since you get his real name, know it’s his son and Now see his son’s face.
I was ok with the “rhyming” plot, but the reveal is what ruined the movie for me initially. JJ is great, but he tends to reveal things way to early. Perhaps this is a product of making TV shows for so many years?