"That Starmer had nothing 'personally' to do with decisions is a bit like saying Boris had nothing personally to do with all those in-office parties that he's subsequently become responsible for.... "
But he has admitted just that.
I don't want to start the partygate stuff yet again, but the oissue there is more Johnson's repeated economy with the truth.
I don't think Sir Keir has ever tried to claim, in relation to the Savile case, that something occurred that did not, or vice versa.
And your link about the journalists indicates that he's left the DPP by the time the Oeration Elveden prosecutions came about so Johnson's original statement is particularly unfortunate (most people don't mention the journalists: Johnson of course is a journalist)