[windowshopping]

Okay, but he was, so.... this comment is pretty empty. And even if he wasn't, he made this music in collaboration with First Nations musicians. I don't think there's a taboo against people working with each other who aren't of the same ethnic background. Cultural appropriation accusations usually come up when someone who has nothing to do with a certain ethnic background starts drawing on it for something - and even then those accusations are often pretty empty.