Cloudflare could refuse to host illegal material or make it available in Spain. If they cannot or will not, this was the best solution the courts arrived at. Other Cloudflare clients could also decide to host elsewhere for Spanish traffic if they cared.

I assume court orders against Cloudflare have been tried. How come they are not effective?

Edit: according to this article, Cloudflare have not been ordered to block the sites. Very odd.

https://cybernews.com/news/cloudflare-spain-laliga-piracy-bl...