The amazing part is that you’ll probably get the same site a month or two from now. I am disappointed that Google doesn’t have a blocklist feature & you’d think they’d want the training data (although I imagine abuse could be a severe challenge).
One possible reason that Google doesn't offer a blocklist is that Google only provides a limited number of results per query. Given Google typically shows more than one result from the same domain, so with a blocklist, it would actually have to devote resource to find results from different domains.
