Bunk is bunk
"Is Agile bunk? No, but much of what is sold as Agile has little to do with what you find in the Agile Manifesto.®"
Ahem. i'm only a dog (iOAD™), but:
Is Communism bunk? No, but much of what is sold as Communism has little to do with what you find in the Communist Manifesto.
Is Free Enterprise bunk? No, but much of what is sold as Free Enterprise has little to do with what you find in Adam Smith's "Wealth of Nations."
Cf. The "No True Scotsman" fallacy: http://en.wikipedia.org/wiki/No_true_Scotsman