Jump has been the focus of contention in the sport of weightlifting, at least in the US, or at least on the internet among Americans, for several years (remember GoHeavy?). It’s one of a handful of things that provokes ire to a surprising degree for some—somehow it’s become a personal affront and it absolutely must not go unchallenged.
My opinion of the cue is quite a bit more moderate. I could live with or without it. I use it occasionally when I feel it’s appropriate at a certain time with a certain lifter, but I don’t think it’s always the best cue or analogy; at the same time, the idea that it’s somehow detrimental across the board and must be wiped off the face of the earth is just absurd to me.