It doesn't matter what you think. I advise anybody not to give a cent to that campaign until it is made clear whether the original artist supports it, or not.
Everything below "production process will include following steps" makes it clear that original artist is not involved. See also this text - "The money collected from this campaign will go for production of one motion comic video, based on the «The Potion Contest» episode".
CC-BY license doesn't require approval from original author. But in this case there is an acclamation anyway - https://twitter.com/davidrevoy/status/768197367833038848