There was a version of the Israeli data that used the wrong denominator to calculate vaccine efficacy against Delta, and made things appear much worse than they were. I am unsure if this is that though, I have sort of lost track.
Maybe it’s me but I’m having trouble understanding their argument. It seems like they’re arguing that the vaxed cases came from cities and therefore the VE is not a reliable metric? (VE has many problems btw but we need to apply that standard both when the VE favors and disfavors the vaccine)