I'm surprised they haven't blamed the Labour Party, the Conservatives, the Lib-Dem, the Greens, the SNP, UKIP and the "Mainly-Zulu Inkatha Party" [of fond memory*].
Surely at least one of them could be held collectively responsible for failing to put pressure on WW?
[* one of those Media-created mandatory adjectives, like "giant" Hercules transport aircraft].