Yes, this law requires an explicit agreement between each publisher and each aggregator to determine the price (probably 0 for Google) under which the snippets

Yes, this law requires an explicit agreement between each publisher and each aggregator to determine the price (probably 0 for Google) under which the snippets may be used. A much better law would have standardized a set of headers or meta tags, similar to what Google uses, to allow publishers to specify allowed usage and created penalties for aggregators that don't respect those headers.