Where did you get this idea? I don't think I have ever read that DD "did not want" Fielder. I think you're mistaking the fact that Illitch wanted him and made sure the deal went through, for Dombrowski now wanting anything to do with him.
By your logic DD didnt want Cabrera either, someone else Illitch told him to pursue.
Ok I guess it was poorly worded then, but I think people understood the general point. Let's just say Fielder wasn't Dave's first choice and he was just pleasing his boss. There were several lower-cost options that he presented but Illitch had a soft spot for fielder. Dave also told the media prior to signing him that Fielder "wasn't a good fit" with the Tigers. I guess he could have been lying though.