I didn't see anyone arguing that point. Those two things are not mutually exclusive. An action can, at the same time, be a shift in the enforcement of the law and completely naked political pandering.
edit: I don't have time to argue one way or another right now, so I am not trying to get into it. I just wanted to point out that you misspoke since I didn't see anyone say that this wasn't political pandering.
Here lets try an experiment: Fuzzy, Blake, et al. (set aside the cons utionality question) Do you think this action was election year pandering to the hispanic vote?