I suppose but even people like Etymotic used high quality cables in their materials at least. I mean these things are not powering subs here. I could see where there might be improvements but I think they are subtle at best.
Also for 300 they can afford at least decent and pure copper and silver is not off the table. If you want larger wiring I guess that may be a concern but I am not an engineer I would not think you need a ton to power each speaker properly. Smaller speakers generally like different wire than subs and so on.
Anyway, if it's good for you then great.