I don't know about your reasons, but many of his "defenders" are only doing this because he is part of their "racial/ethnic/religeous" group. It smacks of bigotry to me. Where are these same people when it comes to unfair treatment of non-Israeli spys?
Besides, part of all of this really is about Israel proving that it protects its spys. If they get a rep of not helping free guys like Pollard, it will be harder for them to recruit. I have no interest in assisting them in their efforts to make traitors out of Americans. The mossad should be ashamed of how they treat the country that funds and supports them. It has back fired on them and the Pollard harping just keeps reopening the wound. Of course Israel has always been very poor at PR.