Plus, in a world of myth and a time of magic (Merlin much?), there's literally spells that can make weapons stronger than any metal
Yes but magic can be disabled or disenchanted. The same way hackers disable computers and robots. (I play way too much pen and paper D&D).
My impression is that in the time frame of the Project skins magic is no more or people need mechines to be able to reconnect wuth magic. Cybernetics can be removed or hid.
Saying that a skin is ugly because it's not what you think that champion should have is nonsense. If it's ugly by design suggest a creative way to fix it instead of saying just delete it and replace it with different skin.