Ironically, the fact that it's not playing out as a major dust-up in public will probably only further contribute to conspiratorial thinking in re: the Israeli gov't.
Israel seems to have a relative degree of immunity when it comes to subverting UK pol. Anyone ever see the investigative journalist piece of the Zionist group trying to subvert the UK Labour Party? They had a journalist go undercover for 6 months recording all kinds of things they weren't meant to:
I watched the first 15 minutes of this and what shocked me is how unrevealing it was. If someone recorded me over the course of weeks or months, I would almost certainly say something that would land me in hot water in some sense. This piece of 'investigative journalism' I actually found embarrassing, all this editing to big it up as some major conspiracy when to me, in that 15 mins at least, was at worst run of the mill lobbying. Considering how unsavoury a character Corbyn was, I actually found the subjects incredibly restrained, perhaps part of the JD however.