There's no way for us to tell for certain, but since Google has used it for creativity oriented projects/papers like Dramatron, I don't think so. I feel the researchers would have said something instead of leading the whole world intentionally astray as everyone is now following Chinchilla's scaling laws.

Chinchilla isn't just a smaller model. It's adequately trained unlike GPT3 which is severely undertrained, so simmilar, if not exceeding ( as officially claimed ), capabilities isn't unexpected.