Just looking at Andersen's performance, I agree that it was very disappointing. Definitely a small step back, in terms of his skill and career progression. I had been looking forward to the the 2nd round, because in my head I thought he had an "A" performance in him for this series.
That being said, because of his youth and inexperience, it cannot be said that this is what he is. He still has room to grow and learn, and perhaps this is just a stepping stone, a learning moment, until he moves on to greater things.
Be patient, young Jedi.