Is that really want the trolls were hoping for? A political researcher interpretation (published on Swedish national news) was that this kind of behavior is historically common, where a group or person want to generate news by first initiating a provocation and then directly denying and distance themselves from it. The goal is to both cause provocation in order to generate media coverage, and also to distance themselves from the interpretation in order to paint themselves (for the in-group) in a good light while at the same time framing the opposition. In extension this helps them to distance the in-group from the out-group. The analyze also mention a possible in-group that include pro-Israel, which makes the distancing of the interpreted provocation critical.

That may or may not be a correct analyze of the situation, and other political researchers might make a different interpretation, but in that scenario the goal is to get people to talk about it. The opposite would be for the story to be buried and ignored.