Well...it's no better than a 10-noble realm who can muster 4,500 CS warring on a 5-noble, 1-region realm in anarchy.
Um... I don't know if you know how math works, but that ratio is indeed A LOT different.
Besides, we weren't even sure we were going to be able to capture the Chateau Saffalore. It was a pretty evenly stacked.