I would actually be disappointed if this wasn't the fulfillment of V's prophecy. I disagree that it was not satisfying - there was drama, action and character development.

V did speak the four right words for all the wrong reason. S/he was given another option by the IFCC and while (as the imp pointed out) that plan was no good, V was too confused to see that. It was pride and lust for power that motivated hir, rather than being in a true "I have no choice"-situation.