fancyscum
Radical Crommunist
unless the gold had a metallic finish, then it certainly would be bright enough.Depending how they do it.
Considering how bright their kits are at the moment, going to dull colours like those might ruin their branding completely. You can get away with using that gold in small bursts like trimming, but a whole kit for a family-friendly franchise is ugly.
For Collingwood it would probably work as a one-off, because they don't have any other stand-out colours, but GC needs at least one vibrant colour. That gold ain't it.