Then you've obviously never seen it in action.
I haven't, but if you've got battle reports to share...
But changes nothing to the fact that city sieges are too hard to begin with anyways. If they found a way to make an overwhelming army win when it wouldn't have, kudos to them. Overwhelming armies should win. If a realm gets ganked by all of its neighbors, it SHOULD die. And I really loathe that all of the game's changes over the last few years seem to make it so that this is the ONLY way to kill a realm, or even just take a city in general.