Its easy to wish good for people that you have neutral feelings about - I find I always support a movie regardless of the actors / crew if the content is good. But its hard when people you like / dislike are concerned. It would be with a lot of effort that I would point out bad things about a movie / show of my fav. And its so easy to spot bad things about someone whom I dislike.
As far as I see its what is called passing a comment with ulterior motives.
But what you are suggesting here - wishing good for people whom you dislike / wishing ill for a project of your fav would be harder. Can't recall doing that ever but I guess its always with a fairly valid reason.
Ex - I wish SRK's masala sort of movies did not become so successful, so that he would do them over and over and distance himself from movies like sawdes / chak de india