Who's a power under such values? Morek, Astrum and Aurvandil only?
I'd add in the 'moot as a whole, even if I wouldn't qualify the individual realms in it as such. We did get all of these people to band against Aurvandil, after all. But yea.
Otherwise, if everyone is a "power", then "power" really doesn't mean anything anymore.
The church as a whole would be considered as a superpower. Aurvandil would not, considering how poorly they fair diplomatically and how it impacts their war capacities (region protests forcing lower taxes and greater control efforts).