If the game was played with 2 player controled factions and rest were AI, the blizter would win.
But if it ALL the factions save for Aztecs, Mongols, Timurs, and the Pope were players, then blitzing would be limited to eastern factions mostly.

Example:
I am Sicily and my spy finds Egyptian coastal cities near emtpy due to Egypt blizting up the holy lands and its defended by 2 town militia then I'm sacking it with a general and 2 norman knights, then promptly sell everything and run away.