Could be that they do, and the beliefs in the Norse gods lingered for quite some time. That might be why Odin still manages to carry a lot of weight.. He might also cheat a bit with the Kris Kringle mask, millions of kids believe in Santa..
According to Odin chose to become mortal but keep privilege to meddle in mortal affairs. Of course as ex-Aesir he was still as mortal powerful wizard, so it's no wonder he restored much of his power by gaining various mantles including mantle of Winter King (which was presumably somehow shaped as memory of him, so it could get easier). Also it's a place where I have to say I really dislike how they use Kris Kringle as almost his proper name considering it's relatively modern concept that arise when German settlers for whome Baby Jesus was giving presents on Christmas - it's result of improper pronounciation of Christkind - (ergo Christ-Child), that was mixed with classic Santa Claus vision.
I doubt it's Jim intention - he probably just choose nickname used most in his region but if I was paranoid I'd make theory how Odin is trying to steal mantles from Jesus himself.
Kringle's thing is that he's part of Odin being a minmaxing fuck who opts into staying involved with humans and becomes mortal as a result but just happens to have a job that gives him immortality on the side.
But I doubt Odin was always a Winter King. He was still proper Aesir in times when Faerie mantles were forged on Stone Table.
My point was that the Amoracchius effective on Outsiders, so there is reason to believe that Fideliacchuis is too.
All swords bear Angel inside. Angels which are like one of most fundamental forces of Creation if Uriel and Dresden are too be believed. And I'd not be surprised if most of Uriel energy was spend fighting like Multiverse Range Outisders on fringes of Creation, while Mab's forces are just like immunological system of one small universe.
Oh I don't know, Kris Kringle is pretty immortal and in the guise of St Nicklaus is worshiped as a Christian saint. Seems like Odin covers all his bases.
I'm not sure if worshipping Saint Nicholas is much empowering for him, but then Santa Claus exists now pretty much independently from real saint.
Now I'm sure Monoc have it's share of stock of Coca Cola company that's for sure.
And what would be epic fantasy? Magicians?
Tolkien, Sanderson, Jordan, Erikson and so on.
Urban Fantasy usually have opinion of lighter and less epic, as it's either real world with supernatural living around, or real world with hidden supernatural dimension. Either dark brooding Chandlerian noir - like Dresden tried to be in books 1-3, or paranormal romances.
One way or another - even in books it usually have scope of thriller with faeries, than zombie T-Rex, and Titan War epicness.