Can you imagine where we'd be if those fringe elements had managed to keep Corbyn in charge like they wanted? He'd be doing exactly what he's been doing today (refusing to criticise Hamas for raping and murdering civilians) and we'd be facing another 5 years of Tory destruction.
Sure I'd like Kier to be more outspoken and advertise more specific progressive policies, but he's playing to win. He's refusing to give the Tory press ammunition and it's working. Once they are in they can actually do stuff to help the British people.
I think we'll be pleasantly surprised about the scope of the agenda once we're closer to the election and there's less time for the right wing media to try and brainwash people against the manifesto.