Follow the money
> the first [ part of the law ] allows (AEDE) to charge content aggregators for any snippets they publish
The basic problem is that there are few european democracies that are as inept as Spain in passing laws. Most laws there seem to either be simple revenue raising efforts that punish successful businesses, or "favours" to the government's brown-envelope-toting friends to nobble competition. Either way, little or no thought is given to the side-effects or unintended consequences of their enforcement. Alternatively they simply aren't enforced at all - or the imposed fines merely achieve the status of another tax on people or businesses.
Just like Hungary quickly canned their plans to tax the internet, I can't see Spain getting any benefit from this lark.