Butcher made a point of saying the Winter Knight was dangerous in the cold and the dark but we didn't get to see any real WK mojo. Resisting cold is fine and all but not very interesting.
No? It helped him to see in the dark and cold of the water. It pulled him out of that soul gaze, made him realize the creature was afraid of him. These are all Winter Knight mantle things, remember Harry's wizard powers were neutralized by the water. So though subtle, the mantle was critical for his survival, it also prevented him from being paralyzed by pain from his head wounds. Maybe not interesting but it cannot all be flash bang.
Though I'm pretty amazed that kraken qualify as people enough to get a soulgaze. Do the rules of magic then apply? It's kind of alarming, to be honest.
Most likely it wasn't born a kracken, the Fomor have done some interesting bio-engineering with
the children it has kidnapped over the centuries. From the landscape Harry saw, it had to have been at least a couple of thousand years old.
We know soulgazes are mediated by the recipient, Harry gets images and video but I think Ramirez get music. I think the recipient's frame of reference also affected what they experience. So everyone gets a different version of Harry. That's why the normal people who soulgazed Harry are gibbering over whatever it was that could frighten a kraken. They see the parts of Harry that matter to them.
Susan fainted, the FBI agent begged him not to consign him to Hell. Everyone may see it differently depending on themselves, but I believe they still see basically what is the essence of who Harry really is, not just what matters to them. Ramirez may hear music, but as we all know music can communicate a lot of different things, mood, emotion, pictures.. However it has never been said that people at the other end of a soul gaze with Ramirez hear music.