Definitely NOT OVER RATED.
What is an issue though is Haas realised some time back that he is massively underpaid. I predicted this last year I believe. Pretty sure it was last season anyway. I believe he looked around at what the games premier props were receiving, at what guys in his own team were being paid and human nature kicked in. I think mentally he just said to himself, **** it. 'Why should I bust a gut for half what the other guys are getting?'
This season he just plodded along and produced performances that a lot of lesser forwards would have gladly called their own. However, I believe he could have played considerably better. I'm of the opinion he may feel undervalued and unappreciated. I agree with him too.
You build a team around two great props and two wannabe great props. Well, we have a superhuman prop playing for plodder wages. If any forward in the game is worth a million a season it's Haas. When he starts getting the top whack he'll come good all of a sudden is my prediction.