Warren Buffet is an investor, which likes business models that he understands. He does not like to take risks but invests in stuff he knows. He typically invests in companies and not in currencies or gold, which he has no measure to value. The same applies to crypto currencies.

Anyway, I think he is right for most coins and tokens - many of them will turn out to be worthless. But if you pick the right ones which survive, I think that you can still make great investments.