[@Rin] Is that a yes or a no? If he notices but does not care that will still affect the story. 

[@VitaVitaAR] I don't see why there would be no literal connection, especially when such relationships between Noble Phantasms are noted and literal. Gram being closely related to Caliburn for example, and Gilgamesh's Merodach being the ancestor of both. Relations between legends tend to be very real in the Fate series, especially when the Servants know magical know about most other legends, starting with those most closely related to their own. Arturia recognizing Cuchulain but not Kojiro for example. 

[@KoL] I agree, I think its more likely for spirits such as Mordred and Sinfjotli to be at odds with one another. I dont think it would be seen as in insult per say, but more as something like confronting your own clone who wants to replace you. Or like a brother who is threatening your inheritance.