"Utter Humiliation" says the Millitwerp

Apparently, Jean-Claude Juncker becoming President of the EU Commission will be

"a total failure to deliver and an utter humiliation" for David Cameron

according to Ed Milliband.

Clearly, of course, it is a failure to deliver - against a rather impressively stacked system signed up to by well, a Labour Prime Minister. So, yes, obviously a "did not achieve". But a "humiliation"?