I listened to a guy who was actually there and there was no incitement of anything. Some of the keffiyeh clique in the crowd nearest the stage shouted "Free, free Palestine" and the band's frontman simply repeated it. Then he asked them, 'What next?" before he shouted "Death, death to the IDF." A few of the same numties in the crowd reluctantly repeated him, but not the thousands of others who were at West Holts stage. Of course, he had the microphone and the PA system so that's the only voice that can be heard on Sky, and other news media outlets who are curiously playing the video with soundtrack totally uncensored on their newscasts... while the BBC isn't supposed to.
Of course the "Sorry I was distracted by foreign affairs" UK Prime Minister (now living in his own black hole, and not the one left by the Tories) has come out all indignant about this "appalling hate speech." This as his back benchers continue to plot against him on his benefits U-turn. Expect another straw-clutching reversal soon.
Queue the indignant (non-resident) British taxpayers, clutching their pearls, and demanding their sort of neutrality from the state broadcaster.