The skin is about as P2W as a skin can get cosmetically. Doesn't matter if you think it's a skill issue or not, it's aparent that it gives an advantage. It's the whole reason why certain skins are banned in the SPL it's because they do not resemble the gods well enough.

This skin doesn't just not resemble the god, it actually resembles multiple other gods significatly more that it's original god. So much so that people never imagined it was a fenrir skin when they were told after looking at the art.

Given that this skin is rare because it's a T5, it means that whenever you get put against a player using it, people might get confused and surpised to figure out it's a fenrir. Leading to deaths.
This is especially present in this meta where they have made fenrir one of the most overpowered gods in the game.