Philip's reasoning might appear a bit farfetched, but it is not completely out of possibility.
There is a good chance that they will sell the whole team out to their enemies, to use as a bargaining chip when they sense the opportunity.
Worse, they can use the whole team for a while to create chaos in Thalassa before selling them out. Double the impact.
"That is why, we are not going to interact with the Sjor family directly. We know a guy, who knows a guy."
Sam paused and Night Ghost spoke.
"Ivar?"
"Yes. Ivar still has a lot of influence in the Norse region and he happens to know a Fourth Grade student in Thor's Academy who is part of Sjor family's branch lineage. He is currently competing with the offspring of the main branch and other side branches for the position of the successor.