The defeat means the Giants lost their 100% record in the competition having previously won all four of their games.
Captain Danny Brough withdrew from the side prior to the game with illness but Anderson refused to use that as an excuse.
Speaking to the Huddersfield Daily Examiner he said: As good a player as he is, I don’t think he would have made much difference to that fiasco. It was just embarrassing.
“Some of the errors we came up with were childish, dropping the ball with nobody in front of you. It robbed us of energy. It was a combination of what’s happened over the last few weeks. We gave the ball away against Wigan and Wakefield and just got through the games but, if you keep doing that, eventually you are going to get burnt.”