Call me pedantic but it makes my nerves jangle when I see contradictions like this! Palladium, Iridium and (yes) silver are all elements and have specific properties, one of which is colour. Palladium silver is an oxymoron!
I know its just marketing and holds no real meaning. It just grates!
Like ringing up for an engineer to fix your boiler.
Bizarrely I havn't got an issue with that. Probably because I don't think cubanite has a real meaning. Maybe someone from Cuba? (who's a silversmith?). Perfectly allowable, if still meaningless marketing.